2390739839 has 2 divisors, whose sum is σ = 2390739840. Its totient is φ = 2390739838.

The previous prime is 2390739817. The next prime is 2390739859. The reversal of 2390739839 is 9389370932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2390739839 - 2⁸ = 2390739583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2390739859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1195369919 + 1195369920.

It is an arithmetic number, because the mean of its divisors is an integer number (1195369920).

Almost surely, 2^2390739839 is an apocalyptic number.

2390739839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2390739839 is an equidigital number, since it uses as much as digits as its factorization.

2390739839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2204496, while the sum is 53.

The square root of 2390739839 is about 48895.1923914816. The cubic root of 2390739839 is about 1337.1417204851.

The spelling of 2390739839 in words is "two billion, three hundred ninety million, seven hundred thirty-nine thousand, eight hundred thirty-nine".