317947825 has 48 divisors (see below), whose sum is σ = 440971776. Its totient is φ = 225907200.

The previous prime is 317947823. The next prime is 317947831. The reversal of 317947825 is 528749713.

It is not a de Polignac number, because 317947825 - 2¹ = 317947823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317947823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1425664 + ... + 1425886.

It is an arithmetic number, because the mean of its divisors is an integer number (9186912).

Almost surely, 2^317947825 is an apocalyptic number.

It is an amenable number.

317947825 is a deficient number, since it is larger than the sum of its proper divisors (123023951).

317947825 is a wasteful number, since it uses less digits than its factorization.

317947825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 389 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 317947825 is about 17831.0915257592. The cubic root of 317947825 is about 682.5250877457.

The spelling of 317947825 in words is "three hundred seventeen million, nine hundred forty-seven thousand, eight hundred twenty-five".