Your number, one digit away
One digit away
One change could reach Exceptional.
Your number
640,391
Notable · Top 40.0%
Position 1: 6 → 4 · +148 points.
Gained: Triangular number, Digit sum 21, 5 distinct digits, Harshad number, Repeated digit.
Lost: Digit sum 23, 6 distinct digits, Semiprime.
53 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.