239939 has 8 divisors (see below), whose sum is σ = 277248. Its totient is φ = 203400.

The previous prime is 239933. The next prime is 239947. The reversal of 239939 is 939932.

239939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 239899 and 239908.

It is not an unprimeable number, because it can be changed into a prime (239933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 944 + ... + 1170.

It is an arithmetic number, because the mean of its divisors is an integer number (34656).

2²³⁹⁹³⁹ is an apocalyptic number.

239939 is a deficient number, since it is larger than the sum of its proper divisors (37309).

239939 is a wasteful number, since it uses less digits than its factorization.

239939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its digits is 13122, while the sum is 35.

The square root of 239939 is about 489.8356867359. The cubic root of 239939 is about 62.1393846401.

The spelling of 239939 in words is "two hundred thirty-nine thousand, nine hundred thirty-nine".