823804 has 6 divisors (see below), whose sum is σ = 1441664. Its totient is φ = 411900.

The previous prime is 823799. The next prime is 823819. The reversal of 823804 is 408328.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102972 + ... + 102979.

2⁸²³⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

823804 is a deficient number, since it is larger than the sum of its proper divisors (617860).

823804 is a wasteful number, since it uses less digits than its factorization.

823804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205955 (or 205953 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 823804 is about 907.6364911130. The cubic root of 823804 is about 93.7435290348.

The spelling of 823804 in words is "eight hundred twenty-three thousand, eight hundred four".