239117 has 4 divisors (see below), whose sum is σ = 240096. Its totient is φ = 238140.

The previous prime is 239087. The next prime is 239119. The reversal of 239117 is 711932.

239117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 239117 - 2⁶ = 239053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 239092 and 239101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242 + ... + 732.

It is an arithmetic number, because the mean of its divisors is an integer number (60024).

2²³⁹¹¹⁷ is an apocalyptic number.

It is an amenable number.

239117 is a deficient number, since it is larger than the sum of its proper divisors (979).

239117 is an equidigital number, since it uses as much as digits as its factorization.

239117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978.

The product of its digits is 378, while the sum is 23.

The square root of 239117 is about 488.9959100033. The cubic root of 239117 is about 62.0683429518.

The spelling of 239117 in words is "two hundred thirty-nine thousand, one hundred seventeen".