317077980 has 96 divisors (see below), whose sum is σ = 912522240. Its totient is φ = 82225920.

The previous prime is 317077961. The next prime is 317077993. The reversal of 317077980 is 89770713.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 645535 + ... + 646025.

It is an arithmetic number, because the mean of its divisors is an integer number (9505440).

Almost surely, 2^317077980 is an apocalyptic number.

317077980 is a gapful number since it is divisible by the number (30) 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 317077980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456261120).

317077980 is an abundant number, since it is smaller than the sum of its proper divisors (595444260).

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

317077980 is a wasteful number, since it uses less digits than its factorization.

317077980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 317077980 is about 17806.6835766799. The cubic root of 317077980 is about 681.9020995054.

The spelling of 317077980 in words is "three hundred seventeen million, seventy-seven thousand, nine hundred eighty".