920804 has 12 divisors (see below), whose sum is σ = 1620528. Its totient is φ = 457800.

The previous prime is 920791. The next prime is 920807. The reversal of 920804 is 408029.

It is a self number, because there is not a number n which added to its sum of digits gives 920804.

It is not an unprimeable number, because it can be changed into a prime (920807) 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, 299 + ... + 1389.

It is an arithmetic number, because the mean of its divisors is an integer number (135044).

2⁹²⁰⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

920804 is a deficient number, since it is larger than the sum of its proper divisors (699724).

920804 is a wasteful number, since it uses less digits than its factorization.

920804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306 (or 1304 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 920804 is about 959.5853271075. The cubic root of 920804 is about 97.2872063080.

The spelling of 920804 in words is "nine hundred twenty thousand, eight hundred four".