317997672 has 16 divisors (see below), whose sum is σ = 794994240. Its totient is φ = 105999216.

The previous prime is 317997643. The next prime is 317997677. The reversal of 317997672 is 276799713.

It is a super-2 number, since 2×317997672² = 202245038794839168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (317997677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6624928 + ... + 6624975.

It is an arithmetic number, because the mean of its divisors is an integer number (49687140).

Almost surely, 2^317997672 is an apocalyptic number.

It is an amenable number.

317997672 is an abundant number, since it is smaller than the sum of its proper divisors (476996568).

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

317997672 is a wasteful number, since it uses less digits than its factorization.

317997672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13249912 (or 13249908 counting only the distinct ones).

The product of its digits is 1000188, while the sum is 51.

The square root of 317997672 is about 17832.4892261288. The cubic root of 317997672 is about 682.5607540276.

The spelling of 317997672 in words is "three hundred seventeen million, nine hundred ninety-seven thousand, six hundred seventy-two".