82518864 has 20 divisors (see below), whose sum is σ = 213173856. Its totient is φ = 27506272.

The previous prime is 82518859. The next prime is 82518883. The reversal of 82518864 is 46881528.

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, 859524 + ... + 859619.

Almost surely, 2^82518864 is an apocalyptic number.

It is an amenable number.

82518864 is an abundant number, since it is smaller than the sum of its proper divisors (130654992).

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

82518864 is a wasteful number, since it uses less digits than its factorization.

82518864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719154 (or 1719148 counting only the distinct ones).

The product of its digits is 122880, while the sum is 42.

The square root of 82518864 is about 9083.9894319621. The cubic root of 82518864 is about 435.3625620443.

The spelling of 82518864 in words is "eighty-two million, five hundred eighteen thousand, eight hundred sixty-four".