317512672 has 48 divisors (see below), whose sum is σ = 663625872. Its totient is φ = 149022720.

The previous prime is 317512603. The next prime is 317512681. The reversal of 317512672 is 276215713.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359143 + ... + 360025.

It is an arithmetic number, because the mean of its divisors is an integer number (13825539).

Almost surely, 2^317512672 is an apocalyptic number.

317512672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317512672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331812936).

317512672 is an abundant number, since it is smaller than the sum of its proper divisors (346113200).

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

317512672 is a wasteful number, since it uses less digits than its factorization.

317512672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571 (or 1563 counting only the distinct ones).

The product of its digits is 17640, while the sum is 34.

The square root of 317512672 is about 17818.8852625522. The cubic root of 317512672 is about 682.2135707662.

The spelling of 317512672 in words is "three hundred seventeen million, five hundred twelve thousand, six hundred seventy-two".