317879473 has 2 divisors, whose sum is σ = 317879474. Its totient is φ = 317879472.

The previous prime is 317879407. The next prime is 317879483. The reversal of 317879473 is 374978713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 296976289 + 20903184 = 17233^2 + 4572^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317879473 is a prime.

It is not a weakly prime, because it can be changed into another prime (317879483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158939736 + 158939737.

It is an arithmetic number, because the mean of its divisors is an integer number (158939737).

Almost surely, 2^317879473 is an apocalyptic number.

It is an amenable number.

317879473 is a deficient number, since it is larger than the sum of its proper divisors (1).

317879473 is an equidigital number, since it uses as much as digits as its factorization.

317879473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 49.

The square root of 317879473 is about 17829.1747705832. The cubic root of 317879473 is about 682.4761747957.

The spelling of 317879473 in words is "three hundred seventeen million, eight hundred seventy-nine thousand, four hundred seventy-three".