86115816 has 48 divisors (see below), whose sum is σ = 233937600. Its totient is φ = 28618272.

The previous prime is 86115811. The next prime is 86115823. The reversal of 86115816 is 61851168.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (86115811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24795 + ... + 28053.

It is an arithmetic number, because the mean of its divisors is an integer number (4873700).

Almost surely, 2^86115816 is an apocalyptic number.

It is an amenable number.

86115816 is an abundant number, since it is smaller than the sum of its proper divisors (147821784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86115816 is a wasteful number, since it uses less digits than its factorization.

86115816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638 (or 3631 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 86115816 is about 9279.8607748177. The cubic root of 86115816 is about 441.5985517044.

The spelling of 86115816 in words is "eighty-six million, one hundred fifteen thousand, eight hundred sixteen".