317890664 has 64 divisors (see below), whose sum is σ = 742573440. Its totient is φ = 124220160.

The previous prime is 317890621. The next prime is 317890669. The reversal of 317890664 is 466098713.

It is not an unprimeable number, because it can be changed into a prime (317890669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57794 + ... + 63054.

It is an arithmetic number, because the mean of its divisors is an integer number (11602710).

Almost surely, 2^317890664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317890664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371286720).

317890664 is an abundant number, since it is smaller than the sum of its proper divisors (424682776).

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

317890664 is a wasteful number, since it uses less digits than its factorization.

317890664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5370 (or 5366 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 317890664 is about 17829.4886073606. The cubic root of 317890664 is about 682.4841835977.

The spelling of 317890664 in words is "three hundred seventeen million, eight hundred ninety thousand, six hundred sixty-four".