317431604 has 18 divisors (see below), whose sum is σ = 646200450. Its totient is φ = 136042032.

The previous prime is 317431601. The next prime is 317431607. The reversal of 317431604 is 406134713.

It is an interprime number because it is at equal distance from previous prime (317431601) and next prime (317431607).

It can be written as a sum of positive squares in only one way, i.e., 262375204 + 55056400 = 16198^2 + 7420^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317431601) 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 in 5 ways as a sum of consecutive naturals, for example, 809579 + ... + 809970.

It is an arithmetic number, because the mean of its divisors is an integer number (35900025).

Almost surely, 2^317431604 is an apocalyptic number.

It is an amenable number.

317431604 is an abundant number, since it is smaller than the sum of its proper divisors (328768846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317431604 is a wasteful number, since it uses less digits than its factorization.

317431604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619567 (or 1619558 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 317431604 is about 17816.6103397925. The cubic root of 317431604 is about 682.1555044251.

The spelling of 317431604 in words is "three hundred seventeen million, four hundred thirty-one thousand, six hundred four".