317389992 has 16 divisors (see below), whose sum is σ = 793475040. Its totient is φ = 105796656.

The previous prime is 317389967. The next prime is 317389999. The reversal of 317389992 is 299983713.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (317389999) 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, 6612268 + ... + 6612315.

It is an arithmetic number, because the mean of its divisors is an integer number (49592190).

Almost surely, 2^317389992 is an apocalyptic number.

It is an amenable number.

317389992 is an abundant number, since it is smaller than the sum of its proper divisors (476085048).

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

317389992 is a wasteful number, since it uses less digits than its factorization.

317389992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13224592 (or 13224588 counting only the distinct ones).

The product of its digits is 734832, while the sum is 51.

The square root of 317389992 is about 17815.4425148521. The cubic root of 317389992 is about 682.1256952789.

The spelling of 317389992 in words is "three hundred seventeen million, three hundred eighty-nine thousand, nine hundred ninety-two".