439319317 has 2 divisors, whose sum is σ = 439319318. Its totient is φ = 439319316.

The previous prime is 439319299. The next prime is 439319333. The reversal of 439319317 is 713913934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 368102596 + 71216721 = 19186^2 + 8439^2 .

It is a cyclic number.

It is not a de Polignac number, because 439319317 - 2⁷ = 439319189 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 439319317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (439319717) 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, 219659658 + 219659659.

It is an arithmetic number, because the mean of its divisors is an integer number (219659659).

Almost surely, 2^439319317 is an apocalyptic number.

It is an amenable number.

439319317 is a deficient number, since it is larger than the sum of its proper divisors (1).

439319317 is an equidigital number, since it uses as much as digits as its factorization.

439319317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 40.

The square root of 439319317 is about 20959.9455390514. The cubic root of 439319317 is about 760.1980768339.

The spelling of 439319317 in words is "four hundred thirty-nine million, three hundred nineteen thousand, three hundred seventeen".