397539 has 6 divisors (see below), whose sum is σ = 574236. Its totient is φ = 265020.

The previous prime is 397519. The next prime is 397541. The reversal of 397539 is 935793.

It is not a de Polignac number, because 397539 - 2⁸ = 397283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397519) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22077 + ... + 22094.

It is an arithmetic number, because the mean of its divisors is an integer number (95706).

2³⁹⁷⁵³⁹ is an apocalyptic number.

397539 is a deficient number, since it is larger than the sum of its proper divisors (176697).

397539 is a wasteful number, since it uses less digits than its factorization.

397539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44177 (or 44174 counting only the distinct ones).

The product of its digits is 25515, while the sum is 36.

The square root of 397539 is about 630.5069388992. The cubic root of 397539 is about 73.5292123226.

The spelling of 397539 in words is "three hundred ninety-seven thousand, five hundred thirty-nine".