317685469 has 2 divisors, whose sum is σ = 317685470. Its totient is φ = 317685468.

The previous prime is 317685463. The next prime is 317685521. The reversal of 317685469 is 964586713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 261210244 + 56475225 = 16162^2 + 7515^2 .

It is a cyclic number.

It is not a de Polignac number, because 317685469 - 2⁵ = 317685437 is a prime.

It is a super-2 number, since 2×317685469² = 201848114427499922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317685463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158842734 + 158842735.

It is an arithmetic number, because the mean of its divisors is an integer number (158842735).

Almost surely, 2^317685469 is an apocalyptic number.

It is an amenable number.

317685469 is a deficient number, since it is larger than the sum of its proper divisors (1).

317685469 is an equidigital number, since it uses as much as digits as its factorization.

317685469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 317685469 is about 17823.7333070263. The cubic root of 317685469 is about 682.3373065938.

The spelling of 317685469 in words is "three hundred seventeen million, six hundred eighty-five thousand, four hundred sixty-nine".