86118507 has 24 divisors (see below), whose sum is σ = 131440400. Its totient is φ = 54183168.

The previous prime is 86118503. The next prime is 86118547. The reversal of 86118507 is 70581168.

It is not a de Polignac number, because 86118507 - 2² = 86118503 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86118503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52719 + ... + 54327.

Almost surely, 2^86118507 is an apocalyptic number.

86118507 is a deficient number, since it is larger than the sum of its proper divisors (45321893).

86118507 is a wasteful number, since it uses less digits than its factorization.

86118507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947 (or 1944 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 86118507 is about 9280.0057650844. The cubic root of 86118507 is about 441.6031514376.

The spelling of 86118507 in words is "eighty-six million, one hundred eighteen thousand, five hundred seven".