Your number, one digit away

One digit away

One change could reach Singular.

Your number

840

Extreme · Top 0.51%

Best one-digit neighbour

820

Singular · Top 0.06%

Position 2: 4 → 2 · +218 points.

Gained: Triangular number, Digit sum 10, Happy number.

Lost: Digit sum 12.

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