86513858 has 6 divisors (see below), whose sum is σ = 129790521. Its totient is φ = 43250352.

The previous prime is 86513851. The next prime is 86513899. The reversal of 86513858 is 85831568.

It can be written as a sum of positive squares in 2 ways, for example, as 51739249 + 34774609 = 7193^2 + 5897^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6577.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86513851) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9866 + ... + 16442.

Almost surely, 2^86513858 is an apocalyptic number.

86513858 is a deficient number, since it is larger than the sum of its proper divisors (43276663).

86513858 is an frugal number, since it uses more digits than its factorization.

86513858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13156 (or 6579 counting only the distinct ones).

The product of its digits is 230400, while the sum is 44.

The square root of 86513858 is about 9301.2825997278. The cubic root of 86513858 is about 442.2778874016.

The spelling of 86513858 in words is "eighty-six million, five hundred thirteen thousand, eight hundred fifty-eight".