317964865 has 16 divisors (see below), whose sum is σ = 398525760. Its totient is φ = 243293760.

The previous prime is 317964853. The next prime is 317964869. The reversal of 317964865 is 568469713.

It is a de Polignac number, because none of the positive numbers 2^k-317964865 is a prime.

It is a super-2 number, since 2×317964865² = 202203310748936450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (317964869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3651 + ... + 25480.

It is an arithmetic number, because the mean of its divisors is an integer number (24907860).

Almost surely, 2^317964865 is an apocalyptic number.

It is an amenable number.

317964865 is a deficient number, since it is larger than the sum of its proper divisors (80560895).

317964865 is a wasteful number, since it uses less digits than its factorization.

317964865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29232.

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

The square root of 317964865 is about 17831.5693364325. The cubic root of 317964865 is about 682.5372805426.

It can be divided in two parts, 3179648 and 65, that added together give a palindrome (3179713).

The spelling of 317964865 in words is "three hundred seventeen million, nine hundred sixty-four thousand, eight hundred sixty-five".