Your number, one digit away
One digit away
One change could reach Extreme.
Your number
640,171
Notable · Top 35.7%
Position 1: 6 → 4 · +220 points.
Gained: Binary palindrome, Digit sum 17, Prime, Double pair, 4 distinct digits.
Lost: Digit sum 19, Semiprime, 5 distinct digits, Happy number, Repeated digit.
53 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.