397567375 has 16 divisors (see below), whose sum is σ = 497165760. Its totient is φ = 317412000.

The previous prime is 397567327. The next prime is 397567393. The reversal of 397567375 is 573765793.

It is not a de Polignac number, because 397567375 - 2²¹ = 395470223 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 64686 + ... + 70564.

It is an arithmetic number, because the mean of its divisors is an integer number (31072860).

Almost surely, 2^397567375 is an apocalyptic number.

397567375 is a deficient number, since it is larger than the sum of its proper divisors (99598385).

397567375 is an equidigital number, since it uses as much as digits as its factorization.

397567375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6435 (or 6425 counting only the distinct ones).

The product of its digits is 4167450, while the sum is 52.

The square root of 397567375 is about 19939.0916292593. The cubic root of 397567375 is about 735.3096170380.

The spelling of 397567375 in words is "three hundred ninety-seven million, five hundred sixty-seven thousand, three hundred seventy-five".