86591016 has 48 divisors (see below), whose sum is σ = 240245460. Its totient is φ = 28158720.

The previous prime is 86591009. The next prime is 86591033. The reversal of 86591016 is 61019568.

It can be written as a sum of positive squares in 2 ways, for example, as 85488516 + 1102500 = 9246^2 + 1050^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11715 + ... + 17618.

Almost surely, 2^86591016 is an apocalyptic number.

It is an amenable number.

86591016 is an abundant number, since it is smaller than the sum of its proper divisors (153654444).

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

86591016 is a wasteful number, since it uses less digits than its factorization.

86591016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29386 (or 29379 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 86591016 is about 9305.4293828925. The cubic root of 86591016 is about 442.4093312268.

The spelling of 86591016 in words is "eighty-six million, five hundred ninety-one thousand, sixteen".