239319317 has 2 divisors, whose sum is σ = 239319318. Its totient is φ = 239319316.

The previous prime is 239319277. The next prime is 239319329. The reversal of 239319317 is 713913932.

239319317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216413521 + 22905796 = 14711^2 + 4786^2 .

It is a cyclic number.

It is not a de Polignac number, because 239319317 - 2¹⁸ = 239057173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239319917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119659658 + 119659659.

It is an arithmetic number, because the mean of its divisors is an integer number (119659659).

Almost surely, 2^239319317 is an apocalyptic number.

It is an amenable number.

239319317 is a deficient number, since it is larger than the sum of its proper divisors (1).

239319317 is an equidigital number, since it uses as much as digits as its factorization.

239319317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618, while the sum is 38.

The square root of 239319317 is about 15469.9488363731. The cubic root of 239319317 is about 620.8584336783.

The spelling of 239319317 in words is "two hundred thirty-nine million, three hundred nineteen thousand, three hundred seventeen".