339678239 has 2 divisors, whose sum is σ = 339678240. Its totient is φ = 339678238.

The previous prime is 339678233. The next prime is 339678277. The reversal of 339678239 is 932876933.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 339678239 - 2⁸ = 339677983 is a prime.

It is a super-2 number, since 2×339678239² = 230762612100282242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (339678233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169839119 + 169839120.

It is an arithmetic number, because the mean of its divisors is an integer number (169839120).

Almost surely, 2^339678239 is an apocalyptic number.

339678239 is a deficient number, since it is larger than the sum of its proper divisors (1).

339678239 is an equidigital number, since it uses as much as digits as its factorization.

339678239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 50.

The square root of 339678239 is about 18430.3618792470. The cubic root of 339678239 is about 697.7329644941.

The spelling of 339678239 in words is "three hundred thirty-nine million, six hundred seventy-eight thousand, two hundred thirty-nine".