317609 has 2 divisors, whose sum is σ = 317610. Its totient is φ = 317608.

The previous prime is 317599. The next prime is 317617. The reversal of 317609 is 906713.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160000 + 157609 = 400^2 + 397^2 .

It is an emirp because it is prime and its reverse (906713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 317609 - 2⁴ = 317593 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 317609.

It is not a weakly prime, because it can be changed into another prime (317209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158804 + 158805.

It is an arithmetic number, because the mean of its divisors is an integer number (158805).

2³¹⁷⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

317609 is a deficient number, since it is larger than the sum of its proper divisors (1).

317609 is an equidigital number, since it uses as much as digits as its factorization.

317609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 317609 is about 563.5680970389. The cubic root of 317609 is about 68.2282554495.

The spelling of 317609 in words is "three hundred seventeen thousand, six hundred nine".