39239 has 2 divisors, whose sum is σ = 39240. Its totient is φ = 39238.

The previous prime is 39233. The next prime is 39241. The reversal of 39239 is 93293.

39239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39239 is a prime.

It is a Sophie Germain prime.

Together with 39241, 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 (39233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19619 + 19620.

It is an arithmetic number, because the mean of its divisors is an integer number (19620).

2³⁹²³⁹ is an apocalyptic number.

39239 is a deficient number, since it is larger than the sum of its proper divisors (1).

39239 is an equidigital number, since it uses as much as digits as its factorization.

39239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 26.

The square root of 39239 is about 198.0883641207. The cubic root of 39239 is about 33.9812468671.

The spelling of 39239 in words is "thirty-nine thousand, two hundred thirty-nine".