13983839 has 4 divisors (see below), whose sum is σ = 14591856. Its totient is φ = 13375824.

The previous prime is 13983803. The next prime is 13983841. The reversal of 13983839 is 93838931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93838931 = 47 ⋅1996573.

It is a cyclic number.

It is not a de Polignac number, because 13983839 - 2¹² = 13979743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13983839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13983859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303974 + ... + 304019.

It is an arithmetic number, because the mean of its divisors is an integer number (3647964).

Almost surely, 2^13983839 is an apocalyptic number.

13983839 is a deficient number, since it is larger than the sum of its proper divisors (608017).

13983839 is an equidigital number, since it uses as much as digits as its factorization.

13983839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608016.

The product of its digits is 139968, while the sum is 44.

The square root of 13983839 is about 3739.4971587100. The cubic root of 13983839 is about 240.9214518788.

The spelling of 13983839 in words is "thirteen million, nine hundred eighty-three thousand, eight hundred thirty-nine".