397307695 has 16 divisors (see below), whose sum is σ = 480775680. Its totient is φ = 315187200.

The previous prime is 397307653. The next prime is 397307699. The reversal of 397307695 is 596703793.

It is a de Polignac number, because none of the positive numbers 2^k-397307695 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397307699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 516271 + ... + 517039.

It is an arithmetic number, because the mean of its divisors is an integer number (30048480).

Almost surely, 2^397307695 is an apocalyptic number.

397307695 is a deficient number, since it is larger than the sum of its proper divisors (83467985).

397307695 is a wasteful number, since it uses less digits than its factorization.

397307695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506.

The product of its (nonzero) digits is 1071630, while the sum is 49.

The square root of 397307695 is about 19932.5787343234. The cubic root of 397307695 is about 735.1494875423.

The spelling of 397307695 in words is "three hundred ninety-seven million, three hundred seven thousand, six hundred ninety-five".