844804 has 12 divisors (see below), whose sum is σ = 1490944. Its totient is φ = 418824.

The previous prime is 844777. The next prime is 844841. The reversal of 844804 is 408448.

It is a happy number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

844804 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324 + ... + 1339.

2⁸⁴⁴⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

844804 is a deficient number, since it is larger than the sum of its proper divisors (646140).

844804 is a wasteful number, since it uses less digits than its factorization.

844804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794 (or 1792 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 844804 is about 919.1321994142. The cubic root of 844804 is about 94.5334092374.

The spelling of 844804 in words is "eight hundred forty-four thousand, eight hundred four".