11839 has 2 divisors, whose sum is σ = 11840. Its totient is φ = 11838.

The previous prime is 11833. The next prime is 11863. The reversal of 11839 is 93811.

It is a weak prime.

It is an emirp because it is prime and its reverse (93811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11839 - 2³ = 11831 is a prime.

It is a Chen prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5919 + 5920.

It is an arithmetic number, because the mean of its divisors is an integer number (5920).

2¹¹⁸³⁹ is an apocalyptic number.

11839 is a deficient number, since it is larger than the sum of its proper divisors (1).

11839 is an equidigital number, since it uses as much as digits as its factorization.

11839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 22.

The square root of 11839 is about 108.8071688815. The cubic root of 11839 is about 22.7914351743.

It can be divided in two parts, 11 and 839, that multiplied together give a palindrome (9229).

The spelling of 11839 in words is "eleven thousand, eight hundred thirty-nine".