12839 has 4 divisors (see below), whose sum is σ = 13224. Its totient is φ = 12456.

The previous prime is 12829. The next prime is 12841. The reversal of 12839 is 93821.

12839 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.

It is a cyclic number.

It is not a de Polignac number, because 12839 - 2⁴ = 12823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137 + ... + 210.

It is an arithmetic number, because the mean of its divisors is an integer number (3306).

2¹²⁸³⁹ is an apocalyptic number.

12839 is a deficient number, since it is larger than the sum of its proper divisors (385).

12839 is an equidigital number, since it uses as much as digits as its factorization.

12839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384.

The product of its digits is 432, while the sum is 23.

The square root of 12839 is about 113.3093111796. The cubic root of 12839 is about 23.4158754617.

The spelling of 12839 in words is "twelve thousand, eight hundred thirty-nine".