845804 has 24 divisors (see below), whose sum is σ = 1612800. Its totient is φ = 386640.

The previous prime is 845777. The next prime is 845809. The reversal of 845804 is 408548.

845804 is nontrivially palindromic in base 16.

It is not an unprimeable number, because it can be changed into a prime (845809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2177 + ... + 2535.

It is an arithmetic number, because the mean of its divisors is an integer number (67200).

2⁸⁴⁵⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

845804 is a deficient number, since it is larger than the sum of its proper divisors (766996).

845804 is a wasteful number, since it uses less digits than its factorization.

845804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 845804 is about 919.6760299149. The cubic root of 845804 is about 94.5706944672.

The spelling of 845804 in words is "eight hundred forty-five thousand, eight hundred four".