397804 has 12 divisors (see below), whose sum is σ = 759528. Its totient is φ = 180800.

The previous prime is 397799. The next prime is 397807. The reversal of 397804 is 408793.

It is a happy number.

397804 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (397807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4477 + ... + 4564.

It is an arithmetic number, because the mean of its divisors is an integer number (63294).

2³⁹⁷⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

397804 is a deficient number, since it is larger than the sum of its proper divisors (361724).

397804 is a wasteful number, since it uses less digits than its factorization.

397804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9056 (or 9054 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 397804 is about 630.7170522508. The cubic root of 397804 is about 73.5455469155.

The spelling of 397804 in words is "three hundred ninety-seven thousand, eight hundred four".