397960 has 16 divisors (see below), whose sum is σ = 895500. Its totient is φ = 159168.

The previous prime is 397951. The next prime is 397963. The reversal of 397960 is 69793.

397960 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in 2 ways, for example, as 391876 + 6084 = 626^2 + 78^2 .

It is not an unprimeable number, because it can be changed into a prime (397963) by changing a digit.

397960 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, 4935 + ... + 5014.

2³⁹⁷⁹⁶⁰ is an apocalyptic number.

It is an amenable number.

397960 is an abundant number, since it is smaller than the sum of its proper divisors (497540).

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

397960 is a wasteful number, since it uses less digits than its factorization.

397960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9960 (or 9956 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 397960 is about 630.8407088957. The cubic root of 397960 is about 73.5551593595. Note that the first 3 decimals are identical.

The spelling of 397960 in words is "three hundred ninety-seven thousand, nine hundred sixty".