317642943 has 16 divisors (see below), whose sum is σ = 448830720. Its totient is φ = 199130496.

The previous prime is 317642933. The next prime is 317642947. The reversal of 317642943 is 349246713.

It is not a de Polignac number, because 317642943 - 2⁸ = 317642687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317642947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80646 + ... + 84492.

It is an arithmetic number, because the mean of its divisors is an integer number (28051920).

Almost surely, 2^317642943 is an apocalyptic number.

317642943 is a deficient number, since it is larger than the sum of its proper divisors (131187777).

317642943 is a wasteful number, since it uses less digits than its factorization.

317642943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5486.

The product of its digits is 108864, while the sum is 39.

The square root of 317642943 is about 17822.5403071504. The cubic root of 317642943 is about 682.3068588985.

The spelling of 317642943 in words is "three hundred seventeen million, six hundred forty-two thousand, nine hundred forty-three".