317792819 has 2 divisors, whose sum is σ = 317792820. Its totient is φ = 317792818.

The previous prime is 317792809. The next prime is 317792831. The reversal of 317792819 is 918297713.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 317792819 - 2²⁰ = 316744243 is a prime.

It is a super-2 number, since 2×317792819² = 201984551615933522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (317792809) 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, 158896409 + 158896410.

It is an arithmetic number, because the mean of its divisors is an integer number (158896410).

Almost surely, 2^317792819 is an apocalyptic number.

317792819 is a deficient number, since it is larger than the sum of its proper divisors (1).

317792819 is an equidigital number, since it uses as much as digits as its factorization.

317792819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 47.

The square root of 317792819 is about 17826.7444868658. The cubic root of 317792819 is about 682.4141547849.

The spelling of 317792819 in words is "three hundred seventeen million, seven hundred ninety-two thousand, eight hundred nineteen".