13806739 has 4 divisors (see below), whose sum is σ = 14407056. Its totient is φ = 13206424.

The previous prime is 13806733. The next prime is 13806761. The reversal of 13806739 is 93760831.

13806739 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 13806739 - 2¹¹ = 13804691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13806698 and 13806707.

It is not an unprimeable number, because it can be changed into a prime (13806733) 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, 300124 + ... + 300169.

It is an arithmetic number, because the mean of its divisors is an integer number (3601764).

Almost surely, 2^13806739 is an apocalyptic number.

13806739 is a deficient number, since it is larger than the sum of its proper divisors (600317).

13806739 is an equidigital number, since it uses as much as digits as its factorization.

13806739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600316.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 13806739 is about 3715.7420524035. The cubic root of 13806739 is about 239.9000683498.

The spelling of 13806739 in words is "thirteen million, eight hundred six thousand, seven hundred thirty-nine".