397400 has 24 divisors (see below), whose sum is σ = 924420. Its totient is φ = 158880.

The previous prime is 397379. The next prime is 397427. The reversal of 397400 is 4793.

397400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

397400 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 5 ways as a sum of consecutive naturals, for example, 794 + ... + 1193.

2³⁹⁷⁴⁰⁰ is an apocalyptic number.

It is an amenable number.

397400 is an abundant number, since it is smaller than the sum of its proper divisors (527020).

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

397400 is a wasteful number, since it uses less digits than its factorization.

397400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003 (or 1994 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 397400 is about 630.3967004990. The cubic root of 397400 is about 73.5206414638.

It can be divided in two parts, 397 and 400, that added together give a palindrome (797).

The spelling of 397400 in words is "three hundred ninety-seven thousand, four hundred".