317449879 has 2 divisors, whose sum is σ = 317449880. Its totient is φ = 317449878.

The previous prime is 317449861. The next prime is 317449897. The reversal of 317449879 is 978944713.

Together with next prime (317449897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (317449861) and next prime (317449897).

It is a cyclic number.

It is not a de Polignac number, because 317449879 - 2²³ = 309061271 is a prime.

It is a super-2 number, since 2×317449879² = 201548851354229282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317441879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158724939 + 158724940.

It is an arithmetic number, because the mean of its divisors is an integer number (158724940).

Almost surely, 2^317449879 is an apocalyptic number.

317449879 is a deficient number, since it is larger than the sum of its proper divisors (1).

317449879 is an equidigital number, since it uses as much as digits as its factorization.

317449879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 52.

The square root of 317449879 is about 17817.1231965208. The cubic root of 317449879 is about 682.1685950693.

The spelling of 317449879 in words is "three hundred seventeen million, four hundred forty-nine thousand, eight hundred seventy-nine".