86878164 has 12 divisors (see below), whose sum is σ = 202715744. Its totient is φ = 28959384.

The previous prime is 86878157. The next prime is 86878193. The reversal of 86878164 is 46187868.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3619912 + ... + 3619935.

Almost surely, 2^86878164 is an apocalyptic number.

It is an amenable number.

86878164 is an abundant number, since it is smaller than the sum of its proper divisors (115837580).

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

86878164 is a wasteful number, since it uses less digits than its factorization.

86878164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7239854 (or 7239852 counting only the distinct ones).

The product of its digits is 516096, while the sum is 48.

The square root of 86878164 is about 9320.8456697877. The cubic root of 86878164 is about 442.8978221985.

The spelling of 86878164 in words is "eighty-six million, eight hundred seventy-eight thousand, one hundred sixty-four".