317668823 has 2 divisors, whose sum is σ = 317668824. Its totient is φ = 317668822.

The previous prime is 317668759. The next prime is 317668849. The reversal of 317668823 is 328866713.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 317668823 - 2⁶ = 317668759 is a prime.

It is a super-2 number, since 2×317668823² = 201826962212410658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317668223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158834411 + 158834412.

It is an arithmetic number, because the mean of its divisors is an integer number (158834412).

Almost surely, 2^317668823 is an apocalyptic number.

317668823 is a deficient number, since it is larger than the sum of its proper divisors (1).

317668823 is an equidigital number, since it uses as much as digits as its factorization.

317668823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The square root of 317668823 is about 17823.2663392544. The cubic root of 317668823 is about 682.3253887419.

The spelling of 317668823 in words is "three hundred seventeen million, six hundred sixty-eight thousand, eight hundred twenty-three".