Your number, one digit away

One digit away

One change could reach Extreme.

Position 3: 8 → 3 · +287 points.

Gained: Triangular number, Digit sum 18, Descending segment, 5 distinct digits, Harshad number, Repeated digit.

Lost: Digit sum 23, 6 distinct digits, Happy number.

53 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.