397537 has 16 divisors (see below), whose sum is σ = 496000. Its totient is φ = 317520.

The previous prime is 397519. The next prime is 397541. The reversal of 397537 is 735793.

397537 is nontrivially palindromic in base 15.

It is a de Polignac number, because none of the positive numbers 2^k-397537 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397517) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6487 + ... + 6547.

It is an arithmetic number, because the mean of its divisors is an integer number (31000).

2³⁹⁷⁵³⁷ is an apocalyptic number.

It is an amenable number.

397537 is a deficient number, since it is larger than the sum of its proper divisors (98463).

397537 is an equidigital number, since it uses as much as digits as its factorization.

397537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 87 counting only the distinct ones).

The product of its digits is 19845, while the sum is 34.

The square root of 397537 is about 630.5053528718. The cubic root of 397537 is about 73.5290890151.

The spelling of 397537 in words is "three hundred ninety-seven thousand, five hundred thirty-seven".