13804939 has 4 divisors (see below), whose sum is σ = 13825120. Its totient is φ = 13784760.

The previous prime is 13804933. The next prime is 13804961. The reversal of 13804939 is 93940831.

13804939 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 13804939 - 2¹¹ = 13802891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13804898 and 13804907.

It is not an unprimeable number, because it can be changed into a prime (13804933) 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, 9027 + ... + 10444.

It is an arithmetic number, because the mean of its divisors is an integer number (3456280).

Almost surely, 2^13804939 is an apocalyptic number.

13804939 is a deficient number, since it is larger than the sum of its proper divisors (20181).

13804939 is an equidigital number, since it uses as much as digits as its factorization.

13804939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20180.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 13804939 is about 3715.4998317858. The cubic root of 13804939 is about 239.8896425500.

The spelling of 13804939 in words is "thirteen million, eight hundred four thousand, nine hundred thirty-nine".