86439204 has 48 divisors (see below), whose sum is σ = 228883200. Its totient is φ = 28198368.

The previous prime is 86439181. The next prime is 86439209. The reversal of 86439204 is 40293468.

It is a happy number.

86439204 is a `hidden beast` number, since 8 + 643 + 9 + 2 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (86439209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3439 + ... + 13590.

It is an arithmetic number, because the mean of its divisors is an integer number (4768400).

Almost surely, 2^86439204 is an apocalyptic number.

It is an amenable number.

86439204 is an abundant number, since it is smaller than the sum of its proper divisors (142443996).

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

86439204 is a wasteful number, since it uses less digits than its factorization.

86439204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17089 (or 17081 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 86439204 is about 9297.2686311626. The cubic root of 86439204 is about 442.1506348977.

The spelling of 86439204 in words is "eighty-six million, four hundred thirty-nine thousand, two hundred four".