317660617 has 2 divisors, whose sum is σ = 317660618. Its totient is φ = 317660616.

The previous prime is 317660597. The next prime is 317660653. The reversal of 317660617 is 716066713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310499641 + 7160976 = 17621^2 + 2676^2 .

It is an emirp because it is prime and its reverse (716066713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 317660617 - 2¹⁹ = 317136329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (317660017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158830308 + 158830309.

It is an arithmetic number, because the mean of its divisors is an integer number (158830309).

Almost surely, 2^317660617 is an apocalyptic number.

It is an amenable number.

317660617 is a deficient number, since it is larger than the sum of its proper divisors (1).

317660617 is an equidigital number, since it uses as much as digits as its factorization.

317660617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 317660617 is about 17823.0361330498. The cubic root of 317660617 is about 682.3195134298.

The spelling of 317660617 in words is "three hundred seventeen million, six hundred sixty thousand, six hundred seventeen".