317938207 has 2 divisors, whose sum is σ = 317938208. Its totient is φ = 317938206.

The previous prime is 317938169. The next prime is 317938219. The reversal of 317938207 is 702839713.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 317938207 - 2¹⁵ = 317905439 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 317938207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317938007) 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, 158969103 + 158969104.

It is an arithmetic number, because the mean of its divisors is an integer number (158969104).

Almost surely, 2^317938207 is an apocalyptic number.

317938207 is a deficient number, since it is larger than the sum of its proper divisors (1).

317938207 is an equidigital number, since it uses as much as digits as its factorization.

317938207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 317938207 is about 17830.8218262648. The cubic root of 317938207 is about 682.5182054924.

It can be divided in two parts, 31793 and 8207, that added together give a square (40000 = 200²).

The spelling of 317938207 in words is "three hundred seventeen million, nine hundred thirty-eight thousand, two hundred seven".