316697897 has 2 divisors, whose sum is σ = 316697898. Its totient is φ = 316697896.

The previous prime is 316697827. The next prime is 316697939. The reversal of 316697897 is 798796613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311840281 + 4857616 = 17659^2 + 2204^2 .

It is a cyclic number.

It is not a de Polignac number, because 316697897 - 2¹² = 316693801 is a prime.

It is not a weakly prime, because it can be changed into another prime (316697827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158348948 + 158348949.

It is an arithmetic number, because the mean of its divisors is an integer number (158348949).

Almost surely, 2^316697897 is an apocalyptic number.

It is an amenable number.

316697897 is a deficient number, since it is larger than the sum of its proper divisors (1).

316697897 is an equidigital number, since it uses as much as digits as its factorization.

316697897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3429216, while the sum is 56.

The square root of 316697897 is about 17796.0078950308. The cubic root of 316697897 is about 681.6295240498.

The spelling of 316697897 in words is "three hundred sixteen million, six hundred ninety-seven thousand, eight hundred ninety-seven".