799904 has 24 divisors (see below), whose sum is σ = 1800288. Its totient is φ = 342720.

The previous prime is 799891. The next prime is 799921. The reversal of 799904 is 409997.

It is an Ulam number.

It is an unprimeable number.

799904 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, 1562 + ... + 2009.

It is an arithmetic number, because the mean of its divisors is an integer number (75012).

2⁷⁹⁹⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

799904 is an abundant number, since it is smaller than the sum of its proper divisors (1000384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

799904 is a wasteful number, since it uses less digits than its factorization.

799904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588 (or 3580 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 799904 is about 894.3735237584. The cubic root of 799904 is about 92.8280632526.

The spelling of 799904 in words is "seven hundred ninety-nine thousand, nine hundred four".