397374537 has 16 divisors (see below), whose sum is σ = 608043392. Its totient is φ = 226126080.

The previous prime is 397374533. The next prime is 397374539. The reversal of 397374537 is 735473793.

It is not a de Polignac number, because 397374537 - 2² = 397374533 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397374533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34198 + ... + 44319.

It is an arithmetic number, because the mean of its divisors is an integer number (38002712).

Almost surely, 2^397374537 is an apocalyptic number.

It is an amenable number.

397374537 is a deficient number, since it is larger than the sum of its proper divisors (210668855).

397374537 is a wasteful number, since it uses less digits than its factorization.

397374537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78768.

The product of its digits is 1666980, while the sum is 48.

The square root of 397374537 is about 19934.2553660778. The cubic root of 397374537 is about 735.1907117683.

The spelling of 397374537 in words is "three hundred ninety-seven million, three hundred seventy-four thousand, five hundred thirty-seven".