Your number, one digit away
One digit away
One change could reach Singular.
Your number
4,991
Exceptional · Top 3.10%
Position 1: 4 → 1 · +346 points.
Gained: Palindrome, Only two distinct digits, Digit sum 20, 2 distinct digits, Semiprime, Double pair.
Lost: Digit sum 23, 3 distinct digits, Harshad number, Repeated digit.
35 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.