316628629 has 2 divisors, whose sum is σ = 316628630. Its totient is φ = 316628628.

The previous prime is 316628591. The next prime is 316628639. The reversal of 316628629 is 926826613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182115025 + 134513604 = 13495^2 + 11598^2 .

It is an emirp because it is prime and its reverse (926826613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316628629 - 2¹⁷ = 316497557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316628639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158314314 + 158314315.

It is an arithmetic number, because the mean of its divisors is an integer number (158314315).

Almost surely, 2^316628629 is an apocalyptic number.

It is an amenable number.

316628629 is a deficient number, since it is larger than the sum of its proper divisors (1).

316628629 is an equidigital number, since it uses as much as digits as its factorization.

316628629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 43.

The square root of 316628629 is about 17794.0616217883. The cubic root of 316628629 is about 681.5798252074.

The spelling of 316628629 in words is "three hundred sixteen million, six hundred twenty-eight thousand, six hundred twenty-nine".