317285893 has 4 divisors (see below), whose sum is σ = 322663680. Its totient is φ = 311908108.

The previous prime is 317285887. The next prime is 317285911. The reversal of 317285893 is 398582713.

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, and also an emirpimes, since its reverse is a distinct semiprime: 398582713 = 4003 ⋅99571.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317285893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317285873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2688805 + ... + 2688922.

It is an arithmetic number, because the mean of its divisors is an integer number (80665920).

Almost surely, 2^317285893 is an apocalyptic number.

It is an amenable number.

317285893 is a deficient number, since it is larger than the sum of its proper divisors (5377787).

317285893 is an equidigital number, since it uses as much as digits as its factorization.

317285893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377786.

The product of its digits is 362880, while the sum is 46.

The square root of 317285893 is about 17812.5206806897. The cubic root of 317285893 is about 682.0511115709.

The spelling of 317285893 in words is "three hundred seventeen million, two hundred eighty-five thousand, eight hundred ninety-three".