864204 has 24 divisors (see below), whose sum is σ = 2200128. Its totient is φ = 261840.

The previous prime is 864203. The next prime is 864211. The reversal of 864204 is 402468.

It is not an unprimeable number, because it can be changed into a prime (864203) 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, 3142 + ... + 3405.

It is an arithmetic number, because the mean of its divisors is an integer number (91672).

2⁸⁶⁴²⁰⁴ is an apocalyptic number.

It is an amenable number.

864204 is an abundant number, since it is smaller than the sum of its proper divisors (1335924).

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

864204 is a wasteful number, since it uses less digits than its factorization.

864204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6565 (or 6563 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 864204 is about 929.6257311413. The cubic root of 864204 is about 95.2515585887.

The spelling of 864204 in words is "eight hundred sixty-four thousand, two hundred four".