86 (eighty-six) is the natural number following 85 and preceding 87.
86 is: It appears in the Padovan sequence, preceded by the terms 37, 49, 65 (it is the sum of the first two of these).
[8] It is conjectured that 86 is the largest n for which the decimal expansion of 2n contains no 0.
[9] 86 = (8 × 6 = 48) + (4 × 8 = 32) + (3 × 2 = 6).
That is, 86 is equal to the sum of the numbers formed in calculating its multiplicative persistence.