397700 has 36 divisors (see below), whose sum is σ = 893172. Its totient is φ = 153600.

The previous prime is 397697. The next prime is 397721. The reversal of 397700 is 7793.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 75076 + 322624 = 274^2 + 568^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 397700.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4052 + ... + 4148.

2³⁹⁷⁷⁰⁰ 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 397700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446586).

397700 is an abundant number, since it is smaller than the sum of its proper divisors (495472).

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

397700 is a wasteful number, since it uses less digits than its factorization.

397700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 1323, while the sum is 26.

The square root of 397700 is about 630.6346010171. The cubic root of 397700 is about 73.5391372234.

The spelling of 397700 in words is "three hundred ninety-seven thousand, seven hundred".