397524 has 24 divisors (see below), whose sum is σ = 937888. Its totient is φ = 131040.

The previous prime is 397519. The next prime is 397541. The reversal of 397524 is 425793.

It is a junction number, because it is equal to n+sod(n) for n = 397491 and 397500.

It is a congruent number.

It is an unprimeable number.

397524 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1779 + ... + 1989.

2³⁹⁷⁵²⁴ is an apocalyptic number.

It is an amenable number.

397524 is an abundant number, since it is smaller than the sum of its proper divisors (540364).

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

397524 is a wasteful number, since it uses less digits than its factorization.

397524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 373 counting only the distinct ones).

The product of its digits is 7560, while the sum is 30.

The square root of 397524 is about 630.4950435967. The cubic root of 397524 is about 73.5282875059.

The spelling of 397524 in words is "three hundred ninety-seven thousand, five hundred twenty-four".