Your number, one digit away
One digit away
One change could reach Exceptional.
Your number
644,987
Rare · Top 9.42%
Position 2: 4 → 9 · +129 points.
Gained: Digit sum 43, Prime, Alternating parity.
Lost: Digit sum 38, Happy number.
53 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.