86138664 has 32 divisors (see below), whose sum is σ = 221169120. Its totient is φ = 27936576.

The previous prime is 86138659. The next prime is 86138669. The reversal of 86138664 is 46683168.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86138659) and next prime (86138669).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (86138669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47614 + ... + 49389.

It is an arithmetic number, because the mean of its divisors is an integer number (6911535).

Almost surely, 2^86138664 is an apocalyptic number.

It is an amenable number.

86138664 is an abundant number, since it is smaller than the sum of its proper divisors (135030456).

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

86138664 is a wasteful number, since it uses less digits than its factorization.

86138664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97049 (or 97045 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 86138664 is about 9281.0917461256. The cubic root of 86138664 is about 441.6376028025.

The spelling of 86138664 in words is "eighty-six million, one hundred thirty-eight thousand, six hundred sixty-four".