804398 has 8 divisors (see below), whose sum is σ = 1378992. Its totient is φ = 344736.

The previous prime is 804383. The next prime is 804409. The reversal of 804398 is 893408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×804398² = 1294112284808, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 804398.

It is an unprimeable number.

804398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28715 + ... + 28742.

It is an arithmetic number, because the mean of its divisors is an integer number (172374).

2⁸⁰⁴³⁹⁸ is an apocalyptic number.

804398 is a deficient number, since it is larger than the sum of its proper divisors (574594).

804398 is a wasteful number, since it uses less digits than its factorization.

804398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57466.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 804398 is about 896.8823780184. The cubic root of 804398 is about 93.0015801173.

The spelling of 804398 in words is "eight hundred four thousand, three hundred ninety-eight".