397525 has 6 divisors (see below), whose sum is σ = 492962. Its totient is φ = 318000.

The previous prime is 397519. The next prime is 397541. The reversal of 397525 is 525793.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 128164 + 269361 = 358^2 + 519^2 .

It is not a de Polignac number, because 397525 - 2³ = 397517 is a prime.

It is a super-2 number, since 2×397525² = 316052251250, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁸ + 9 + 5² + 7² + 2⁸ + 5⁸ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7926 + ... + 7975.

2³⁹⁷⁵²⁵ is an apocalyptic number.

It is an amenable number.

397525 is a deficient number, since it is larger than the sum of its proper divisors (95437).

397525 is a wasteful number, since it uses less digits than its factorization.

397525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15911 (or 15906 counting only the distinct ones).

The product of its digits is 9450, while the sum is 31.

The square root of 397525 is about 630.4958366238. The cubic root of 397525 is about 73.5283491611.

The spelling of 397525 in words is "three hundred ninety-seven thousand, five hundred twenty-five".