317610921 has 8 divisors (see below), whose sum is σ = 425299680. Its totient is φ = 210831392.

The previous prime is 317610911. The next prime is 317610947. The reversal of 317610921 is 129016713.

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 317610921 - 2¹¹ = 317608873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (317610911) 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 7 ways as a sum of consecutive naturals, for example, 226491 + ... + 227888.

It is an arithmetic number, because the mean of its divisors is an integer number (53162460).

Almost surely, 2^317610921 is an apocalyptic number.

It is an amenable number.

317610921 is a deficient number, since it is larger than the sum of its proper divisors (107688759).

317610921 is a wasteful number, since it uses less digits than its factorization.

317610921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454615.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 317610921 is about 17821.6419277237. The cubic root of 317610921 is about 682.2839300461.

The spelling of 317610921 in words is "three hundred seventeen million, six hundred ten thousand, nine hundred twenty-one".