317348921 has 8 divisors (see below), whose sum is σ = 319622400. Its totient is φ = 315081360.

The previous prime is 317348909. The next prime is 317348947. The reversal of 317348921 is 129843713.

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 317348921 - 2²² = 313154617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (317348021) 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, 176495 + ... + 178283.

It is an arithmetic number, because the mean of its divisors is an integer number (39952800).

Almost surely, 2^317348921 is an apocalyptic number.

It is an amenable number.

317348921 is a deficient number, since it is larger than the sum of its proper divisors (2273479).

317348921 is a wasteful number, since it uses less digits than its factorization.

317348921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959.

The product of its digits is 36288, while the sum is 38.

The square root of 317348921 is about 17814.2897978000. The cubic root of 317348921 is about 682.0962711281.

The spelling of 317348921 in words is "three hundred seventeen million, three hundred forty-eight thousand, nine hundred twenty-one".