317648017 has 2 divisors, whose sum is σ = 317648018. Its totient is φ = 317648016.

The previous prime is 317647999. The next prime is 317648029. The reversal of 317648017 is 710846713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269747776 + 47900241 = 16424^2 + 6921^2 .

It is an emirp because it is prime and its reverse (710846713) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317648017 is a prime.

It is not a weakly prime, because it can be changed into another prime (317648047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158824008 + 158824009.

It is an arithmetic number, because the mean of its divisors is an integer number (158824009).

Almost surely, 2^317648017 is an apocalyptic number.

It is an amenable number.

317648017 is a deficient number, since it is larger than the sum of its proper divisors (1).

317648017 is an equidigital number, since it uses as much as digits as its factorization.

317648017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 317648017 is about 17822.6826544154. The cubic root of 317648017 is about 682.3104919154.

The spelling of 317648017 in words is "three hundred seventeen million, six hundred forty-eight thousand, seventeen".