116839 has 4 divisors (see below), whose sum is σ = 120640. Its totient is φ = 113040.

The previous prime is 116833. The next prime is 116849. The reversal of 116839 is 938611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116839 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116833) 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, 1854 + ... + 1915.

It is an arithmetic number, because the mean of its divisors is an integer number (30160).

2¹¹⁶⁸³⁹ is an apocalyptic number.

116839 is a deficient number, since it is larger than the sum of its proper divisors (3801).

116839 is an equidigital number, since it uses as much as digits as its factorization.

116839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800.

The product of its digits is 1296, while the sum is 28.

The square root of 116839 is about 341.8172026098. The cubic root of 116839 is about 48.8872877881.

The spelling of 116839 in words is "one hundred sixteen thousand, eight hundred thirty-nine".