86504 has 16 divisors (see below), whose sum is σ = 177120. Its totient is φ = 39280.

The previous prime is 86501. The next prime is 86509. The reversal of 86504 is 40568.

It is a self number, because there is not a number n which added to its sum of digits gives 86504.

It is not an unprimeable number, because it can be changed into a prime (86501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404 + ... + 579.

It is an arithmetic number, because the mean of its divisors is an integer number (11070).

2⁸⁶⁵⁰⁴ is an apocalyptic number.

It is an amenable number.

86504 is an abundant number, since it is smaller than the sum of its proper divisors (90616).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88560).

86504 is a wasteful number, since it uses less digits than its factorization.

86504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 86504 is about 294.1156235225. The cubic root of 86504 is about 44.2261088008.

The spelling of 86504 in words is "eighty-six thousand, five hundred four".