317080656 has 100 divisors (see below), whose sum is σ = 928372500. Its totient is φ = 104467968.

The previous prime is 317080627. The next prime is 317080663. The reversal of 317080656 is 656080713.

It can be written as a sum of positive squares in 2 ways, for example, as 48776256 + 268304400 = 6984^2 + 16380^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 317080656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 113970 + ... + 116718.

It is an arithmetic number, because the mean of its divisors is an integer number (9283725).

Almost surely, 2^317080656 is an apocalyptic number.

317080656 is a gapful number since it is divisible by the number (36) 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 317080656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464186250).

317080656 is an abundant number, since it is smaller than the sum of its proper divisors (611291844).

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

317080656 is a wasteful number, since it uses less digits than its factorization.

317080656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858 (or 2843 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 317080656 is about 17806.7587168468. The cubic root of 317080656 is about 681.9040178189.

The spelling of 317080656 in words is "three hundred seventeen million, eighty thousand, six hundred fifty-six".