317322839 has 2 divisors, whose sum is σ = 317322840. Its totient is φ = 317322838.

The previous prime is 317322823. The next prime is 317322847. The reversal of 317322839 is 938223713.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 317322839 - 2⁴ = 317322823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317322899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158661419 + 158661420.

It is an arithmetic number, because the mean of its divisors is an integer number (158661420).

Almost surely, 2^317322839 is an apocalyptic number.

317322839 is a deficient number, since it is larger than the sum of its proper divisors (1).

317322839 is an equidigital number, since it uses as much as digits as its factorization.

317322839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 317322839 is about 17813.5577299988. The cubic root of 317322839 is about 682.0775841023.

The spelling of 317322839 in words is "three hundred seventeen million, three hundred twenty-two thousand, eight hundred thirty-nine".