316817819 has 2 divisors, whose sum is σ = 316817820. Its totient is φ = 316817818.

The previous prime is 316817807. The next prime is 316817827. The reversal of 316817819 is 918718613.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 316817819 - 2²⁴ = 300040603 is a prime.

It is a super-2 number, since 2×316817819² = 200747060871833522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 316817819.

It is not a weakly prime, because it can be changed into another prime (316817869) 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, 158408909 + 158408910.

It is an arithmetic number, because the mean of its divisors is an integer number (158408910).

Almost surely, 2^316817819 is an apocalyptic number.

316817819 is a deficient number, since it is larger than the sum of its proper divisors (1).

316817819 is an equidigital number, since it uses as much as digits as its factorization.

316817819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 44.

The square root of 316817819 is about 17799.3769272972. The cubic root of 316817819 is about 681.7155493135.

The spelling of 316817819 in words is "three hundred sixteen million, eight hundred seventeen thousand, eight hundred nineteen".