86518984 has 32 divisors (see below), whose sum is σ = 174598200. Its totient is φ = 40043520.

The previous prime is 86518973. The next prime is 86518997. The reversal of 86518984 is 48981568.

It can be written as a sum of positive squares in 4 ways, for example, as 82992100 + 3526884 = 9110^2 + 1878^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3082 + ... + 13510.

Almost surely, 2^86518984 is an apocalyptic number.

It is an amenable number.

86518984 is an abundant number, since it is smaller than the sum of its proper divisors (88079216).

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

86518984 is a wasteful number, since it uses less digits than its factorization.

86518984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10513 (or 10509 counting only the distinct ones).

The product of its digits is 552960, while the sum is 49.

The square root of 86518984 is about 9301.5581490415. The cubic root of 86518984 is about 442.2866223092.

The spelling of 86518984 in words is "eighty-six million, five hundred eighteen thousand, nine hundred eighty-four".