Your number, one digit away

One digit away

One change could reach Extreme.

Your number

643,557

Standard · Top 58.7%

Best one-digit neighbour

643,257

Extreme · Top 0.54%

Position 4: 5 → 2 · +278 points.

Gained: Binary palindrome, Descending segment, Digit sum 27, 6 distinct digits, Happy number.

Lost: Digit sum 30, Semiprime, 5 distinct digits, Repeated digit.

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