317359993 has 2 divisors, whose sum is σ = 317359994. Its totient is φ = 317359992.

The previous prime is 317359951. The next prime is 317360011. The reversal of 317359993 is 399953713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 278322489 + 39037504 = 16683^2 + 6248^2 .

It is a cyclic number.

It is not a de Polignac number, because 317359993 - 2⁹ = 317359481 is a prime.

It is not a weakly prime, because it can be changed into another prime (317359943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158679996 + 158679997.

It is an arithmetic number, because the mean of its divisors is an integer number (158679997).

Almost surely, 2^317359993 is an apocalyptic number.

It is an amenable number.

317359993 is a deficient number, since it is larger than the sum of its proper divisors (1).

317359993 is an equidigital number, since it uses as much as digits as its factorization.

317359993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 688905, while the sum is 49.

The square root of 317359993 is about 17814.6005568466. The cubic root of 317359993 is about 682.1042035978.

The spelling of 317359993 in words is "three hundred seventeen million, three hundred fifty-nine thousand, nine hundred ninety-three".