397031695 has 16 divisors (see below), whose sum is σ = 502087680. Its totient is φ = 300564000.

The previous prime is 397031671. The next prime is 397031777. The reversal of 397031695 is 596130793.

It is a happy number.

It is not a de Polignac number, because 397031695 - 2⁷ = 397031567 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107530 + ... + 111160.

It is an arithmetic number, because the mean of its divisors is an integer number (31380480).

Almost surely, 2^397031695 is an apocalyptic number.

397031695 is a deficient number, since it is larger than the sum of its proper divisors (105055985).

397031695 is a wasteful number, since it uses less digits than its factorization.

397031695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806.

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 397031695 is about 19925.6541925228. The cubic root of 397031695 is about 734.9792179479.

The spelling of 397031695 in words is "three hundred ninety-seven million, thirty-one thousand, six hundred ninety-five".