34740239 has 2 divisors, whose sum is σ = 34740240. Its totient is φ = 34740238.

The previous prime is 34740221. The next prime is 34740241. The reversal of 34740239 is 93204743.

It is a strong prime.

It is an emirp because it is prime and its reverse (93204743) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34740239 - 2²⁰ = 33691663 is a prime.

Together with 34740241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34740539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17370119 + 17370120.

It is an arithmetic number, because the mean of its divisors is an integer number (17370120).

Almost surely, 2^34740239 is an apocalyptic number.

34740239 is a deficient number, since it is larger than the sum of its proper divisors (1).

34740239 is an equidigital number, since it uses as much as digits as its factorization.

34740239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 34740239 is about 5894.0850859145. The cubic root of 34740239 is about 326.2953869809.

The spelling of 34740239 in words is "thirty-four million, seven hundred forty thousand, two hundred thirty-nine".