Numbers /877,878

How rare is 877,878?

877,878 scores 399 and sits in the Extreme tier — 1 in 100 of all supported numbers score this high or higher. Everything below is computed from a complete analysis of all 1,000,001 numbers in range.

Number
877,878
Extreme
Rarity Score
399
Global Percentile
Top 1.00%
Same-length rank
Top 0.50%
Among 900,000 6-digit numbers
Traits Detected
4

RNGdle.net’s own rarity score. Top 1.00% means that proportion of supported numbers scores at least this high. Every exact number has the same chance of being rolled. Same-length rank keeps the score and compares only numbers with 6 digits, including ties. How this differs from EP · Badge guide

Number DNA
877878
Lab Observations · Descriptive Only
6 digitsEven numberZero-freeMatching endpoints7 × 3 · 8 × 3

These notes make the number easy to read, but they add no score unless a separately counted rarity signal appears below.

Digit Profile
Length6 digits
Unique digits2
Digit sum45
Odd / even split3 / 3
Digital root9
Mathematical Properties
Composite number
20 divisors
Not a perfect square
Not a perfect cube
Not a palindrome
Rarity Drivers
4 traits detected
Digit sum 45Extreme

This number's digits add up to an uncommon total.

Arithmetic · signal frequency

+179
1 in 500
Only two distinct digitsExtreme

A number of four or more digits built from just two digits.

Repetition · signal frequency

+157
1 in 233
2 distinct digitsExtreme

This number uses an uncommon count of distinct digits.

Repetition · signal frequency

+54
1 in 217
Triple digitDistinct

A single digit appears exactly three times.

Repetition · signal frequency

+9
13.80%
Rarity Explanation

Strongest signal: Digit sum 45. It appears in 2,002 supported numbers and contributes +179 after correlation decay.

Why is 877,878 unusual? Only 1.00% of the 1,000,001 supported numbers receive an equal or higher rarity score. This number falls in the Extreme tier. Scoring is grounded in the exact frequency of each detected trait — rarer traits carry more information and contribute more to the score.

Algorithm version 1.1.0

One digit away

One change could reach Singular.

Your number

877,878

Extreme · Top 1.00%

Best one-digit neighbour

878,878

Singular · Top 0.02%

Position 3: 7 → 8 · +406 points.

Gained: ABCABC pattern, Digit sum 46, Palindrome, Quadruple digit.

53 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.

Explore & share this near miss →
How lucky is my history?

Similar interesting numbers

Explore a shared pattern, a comparable score, or a mathematical relationship. Every link explains its connection to 877,878.

Shared patterns

686,886 Score 367Shares triple digit and only two distinct digits.999,555 Score 377Shares triple digit and only two distinct digits.887,787 Score 399Shares triple digit and only two distinct digits.

Same length, nearby scores

878,778 Score 399Also 6 digits; the same rarity score.877,887 Score 399Also 6 digits; the same rarity score.788,778 Score 399Also 6 digits; the same rarity score.

Mathematical relationships

778,788 Score 399Same decimal digits, rotated into a different order.787,887 Score 399Same decimal digits, rotated into a different order.878,877 Score 399Same decimal digits, rotated into a different order.

Patterns in this number

Each of these has its own page explaining how common the pattern is and why.

Triple Digits

A triple contains exactly three copies of one digit, such as 8188 or 636306. It is the most common form of strong repetition — and the first one most people notice.

Numbers Built From Two Digits

These numbers use only two different digits across four or more places, like 9119 or 303033. The whole number is drawn from a two-symbol alphabet.
Open in the calculator Compare this number Browse all patterns See the rarest numbers