Your number, one digit away
One digit away
One change could reach Extreme.
Your number
678,449
Exceptional · Top 3.92%
Position 4: 4 → 9 · +84 points.
Gained: Digit sum 43, Prime, Alternating parity.
Lost: Digit sum 38, Semiprime, Happy number.
53 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.