317989879 has 6 divisors (see below), whose sum is σ = 337795784. Its totient is φ = 299284320.

The previous prime is 317989873. The next prime is 317989897. The reversal of 317989879 is 978989713.

It is not a de Polignac number, because 317989879 - 2⁷ = 317989751 is a prime.

It is a super-2 number, since 2×317989879² = 202235126292869282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317989873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 549867 + ... + 550444.

Almost surely, 2^317989879 is an apocalyptic number.

317989879 is a deficient number, since it is larger than the sum of its proper divisors (19805905).

317989879 is a wasteful number, since it uses less digits than its factorization.

317989879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100345 (or 1100328 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 61.

The square root of 317989879 is about 17832.2707191204. The cubic root of 317989879 is about 682.5551782642. Note that the first 3 decimals are identical.

The spelling of 317989879 in words is "three hundred seventeen million, nine hundred eighty-nine thousand, eight hundred seventy-nine".