86556713 has 2 divisors, whose sum is σ = 86556714. Its totient is φ = 86556712.

The previous prime is 86556629. The next prime is 86556731. The reversal of 86556713 is 31765568.

Together with next prime (86556731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71284249 + 15272464 = 8443^2 + 3908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86556713 is a prime.

It is not a weakly prime, because it can be changed into another prime (86556763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43278356 + 43278357.

It is an arithmetic number, because the mean of its divisors is an integer number (43278357).

Almost surely, 2^86556713 is an apocalyptic number.

It is an amenable number.

86556713 is a deficient number, since it is larger than the sum of its proper divisors (1).

86556713 is an equidigital number, since it uses as much as digits as its factorization.

86556713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 41.

The square root of 86556713 is about 9303.5860290535. The cubic root of 86556713 is about 442.3509034113.

The spelling of 86556713 in words is "eighty-six million, five hundred fifty-six thousand, seven hundred thirteen".