339942517 has 2 divisors, whose sum is σ = 339942518. Its totient is φ = 339942516.

The previous prime is 339942503. The next prime is 339942529. The reversal of 339942517 is 715249933.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264582756 + 75359761 = 16266^2 + 8681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-339942517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (339942017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169971258 + 169971259.

It is an arithmetic number, because the mean of its divisors is an integer number (169971259).

Almost surely, 2^339942517 is an apocalyptic number.

It is an amenable number.

339942517 is a deficient number, since it is larger than the sum of its proper divisors (1).

339942517 is an equidigital number, since it uses as much as digits as its factorization.

339942517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 43.

The square root of 339942517 is about 18437.5301220093. The cubic root of 339942517 is about 697.9138687053.

The spelling of 339942517 in words is "three hundred thirty-nine million, nine hundred forty-two thousand, five hundred seventeen".