397601967 has 32 divisors (see below), whose sum is σ = 642816000. Its totient is φ = 213401088.

The previous prime is 397601959. The next prime is 397601983. The reversal of 397601967 is 769106793.

It is not a de Polignac number, because 397601967 - 2³ = 397601959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397601947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255909 + ... + 257457.

It is an arithmetic number, because the mean of its divisors is an integer number (20088000).

Almost surely, 2^397601967 is an apocalyptic number.

397601967 is a deficient number, since it is larger than the sum of its proper divisors (245214033).

397601967 is a wasteful number, since it uses less digits than its factorization.

397601967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295.

The product of its (nonzero) digits is 428652, while the sum is 48.

The square root of 397601967 is about 19939.9590521144. The cubic root of 397601967 is about 735.3309426415.

The spelling of 397601967 in words is "three hundred ninety-seven million, six hundred one thousand, nine hundred sixty-seven".