68839 has 8 divisors (see below), whose sum is σ = 74592. Its totient is φ = 63360.

The previous prime is 68821. The next prime is 68863. The reversal of 68839 is 93886.

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

It is a cyclic number.

It is not a de Polignac number, because 68839 - 2⁷ = 68711 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 (68819) 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, 907 + ... + 979.

It is an arithmetic number, because the mean of its divisors is an integer number (9324).

2⁶⁸⁸³⁹ is an apocalyptic number.

68839 is a deficient number, since it is larger than the sum of its proper divisors (5753).

68839 is a wasteful number, since it uses less digits than its factorization.

68839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137.

The product of its digits is 10368, while the sum is 34.

The square root of 68839 is about 262.3718734926. The cubic root of 68839 is about 40.9837333845.

It can be divided in two parts, 688 and 39, that added together give a palindrome (727).

The spelling of 68839 in words is "sixty-eight thousand, eight hundred thirty-nine".