Your number, one digit away
One digit away
One change could reach Extreme.
Your number
643,157
Notable · Top 43.2%
Position 4: 1 → 2 · +255 points.
Gained: Binary palindrome, Descending segment, Digit sum 27, Happy number.
Lost: Digit sum 26, Semiprime.
53 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.