397316713 has 2 divisors, whose sum is σ = 397316714. Its totient is φ = 397316712.

The previous prime is 397316683. The next prime is 397316719. The reversal of 397316713 is 317613793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270010624 + 127306089 = 16432^2 + 11283^2 .

It is a cyclic number.

It is not a de Polignac number, because 397316713 - 2¹³ = 397308521 is a prime.

It is not a weakly prime, because it can be changed into another prime (397316719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198658356 + 198658357.

It is an arithmetic number, because the mean of its divisors is an integer number (198658357).

Almost surely, 2^397316713 is an apocalyptic number.

It is an amenable number.

397316713 is a deficient number, since it is larger than the sum of its proper divisors (1).

397316713 is an equidigital number, since it uses as much as digits as its factorization.

397316713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71442, while the sum is 40.

The square root of 397316713 is about 19932.8049456167. The cubic root of 397316713 is about 735.1550495857.

The spelling of 397316713 in words is "three hundred ninety-seven million, three hundred sixteen thousand, seven hundred thirteen".