317394321 has 4 divisors (see below), whose sum is σ = 423192432. Its totient is φ = 211596212.

The previous prime is 317394317. The next prime is 317394331. The reversal of 317394321 is 123493713.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 317394321 - 2² = 317394317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (317394331) 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, 52899051 + ... + 52899056.

It is an arithmetic number, because the mean of its divisors is an integer number (105798108).

Almost surely, 2^317394321 is an apocalyptic number.

It is an amenable number.

317394321 is a deficient number, since it is larger than the sum of its proper divisors (105798111).

317394321 is a wasteful number, since it uses less digits than its factorization.

317394321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105798110.

The product of its digits is 13608, while the sum is 33.

The square root of 317394321 is about 17815.5640101570. The cubic root of 317394321 is about 682.1287965200.

The spelling of 317394321 in words is "three hundred seventeen million, three hundred ninety-four thousand, three hundred twenty-one".