317638339 has 8 divisors (see below), whose sum is σ = 319531680. Its totient is φ = 315751296.

The previous prime is 317638327. The next prime is 317638417. The reversal of 317638339 is 933836713.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 317638339 - 2¹³ = 317630147 is a prime.

It is a super-2 number, since 2×317638339² = 201788228805357842, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 317638295 and 317638304.

It is not an unprimeable number, because it can be changed into a prime (317636339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129882 + ... + 132304.

It is an arithmetic number, because the mean of its divisors is an integer number (39941460).

Almost surely, 2^317638339 is an apocalyptic number.

317638339 is a deficient number, since it is larger than the sum of its proper divisors (1893341).

317638339 is a wasteful number, since it uses less digits than its factorization.

317638339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149.

The product of its digits is 244944, while the sum is 43.

The square root of 317638339 is about 17822.4111443991. The cubic root of 317638339 is about 682.3035623711.

The spelling of 317638339 in words is "three hundred seventeen million, six hundred thirty-eight thousand, three hundred thirty-nine".