808904 has 8 divisors (see below), whose sum is σ = 1516710. Its totient is φ = 404448.

The previous prime is 808867. The next prime is 808919. The reversal of 808904 is 409808.

808904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 806404 + 2500 = 898^2 + 50^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

808904 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50549 + ... + 50564.

2⁸⁰⁸⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

808904 is a deficient number, since it is larger than the sum of its proper divisors (707806).

808904 is a wasteful number, since it uses less digits than its factorization.

808904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101119 (or 101115 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 808904 is about 899.3909050018. The cubic root of 808904 is about 93.1749126604.

The spelling of 808904 in words is "eight hundred eight thousand, nine hundred four".