397100 has 54 divisors (see below), whose sum is σ = 992124. Its totient is φ = 136800.

The previous prime is 397099. The next prime is 397127. The reversal of 397100 is 1793.

397100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 397100.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20891 + ... + 20909.

2³⁹⁷¹⁰⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496062).

397100 is an abundant number, since it is smaller than the sum of its proper divisors (595024).

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

397100 is a wasteful number, since it uses less digits than its factorization.

397100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 397100 is about 630.1587101675. The cubic root of 397100 is about 73.5021363934.

Adding to 397100 its reverse (1793), we get a palindrome (398893).

The spelling of 397100 in words is "three hundred ninety-seven thousand, one hundred".