316697629 has 2 divisors, whose sum is σ = 316697630. Its totient is φ = 316697628.

The previous prime is 316697621. The next prime is 316697651. The reversal of 316697629 is 926796613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193154404 + 123543225 = 13898^2 + 11115^2 .

It is an emirp because it is prime and its reverse (926796613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316697629 - 2³ = 316697621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316697621) 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, 158348814 + 158348815.

It is an arithmetic number, because the mean of its divisors is an integer number (158348815).

Almost surely, 2^316697629 is an apocalyptic number.

It is an amenable number.

316697629 is a deficient number, since it is larger than the sum of its proper divisors (1).

316697629 is an equidigital number, since it uses as much as digits as its factorization.

316697629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 49.

The square root of 316697629 is about 17796.0003652506. Note that the first 3 decimals coincide. The cubic root of 316697629 is about 681.6293317774.

The spelling of 316697629 in words is "three hundred sixteen million, six hundred ninety-seven thousand, six hundred twenty-nine".