Your number, one digit away
One digit away
One change could reach Extreme.
Your number
21,909
Notable · Top 29.3%
Position 5: 9 → 4 · +212 points.
Gained: Perfect square, Digit sum 16, 5 distinct digits, Harshad number.
Lost: Digit sum 21, 4 distinct digits, Happy number, Repeated digit.
44 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.