317879407 has 2 divisors, whose sum is σ = 317879408. Its totient is φ = 317879406.

The previous prime is 317879399. The next prime is 317879473. The reversal of 317879407 is 704978713.

It is a weak prime.

It is an emirp because it is prime and its reverse (704978713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 317879407 - 2³ = 317879399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317870407) 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 as a sum of consecutive naturals, namely, 158939703 + 158939704.

It is an arithmetic number, because the mean of its divisors is an integer number (158939704).

Almost surely, 2^317879407 is an apocalyptic number.

317879407 is a deficient number, since it is larger than the sum of its proper divisors (1).

317879407 is an equidigital number, since it uses as much as digits as its factorization.

317879407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 317879407 is about 17829.1729196842. The cubic root of 317879407 is about 682.4761275624.

The spelling of 317879407 in words is "three hundred seventeen million, eight hundred seventy-nine thousand, four hundred seven".