86385618 has 24 divisors (see below), whose sum is σ = 204184656. Its totient is φ = 26177400.

The previous prime is 86385589. The next prime is 86385659. The reversal of 86385618 is 81658368.

86385618 is a `hidden beast` number, since 8 + 638 + 5 + 6 + 1 + 8 = 666.

It is a super-3 number, since 3×86385618³ (a number of 25 digits) contains 333 as substring.

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, 217948 + ... + 218343.

It is an arithmetic number, because the mean of its divisors is an integer number (8507694).

Almost surely, 2^86385618 is an apocalyptic number.

86385618 is an abundant number, since it is smaller than the sum of its proper divisors (117799038).

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

86385618 is a wasteful number, since it uses less digits than its factorization.

86385618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436310 (or 436307 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 86385618 is about 9294.3863702775. The cubic root of 86385618 is about 442.0592489659.

The spelling of 86385618 in words is "eighty-six million, three hundred eighty-five thousand, six hundred eighteen".