13844813 has 4 divisors (see below), whose sum is σ = 14051520. Its totient is φ = 13638108.

The previous prime is 13844797. The next prime is 13844821. The reversal of 13844813 is 31844831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13844813 - 2⁴ = 13844797 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 13844813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13844113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103253 + ... + 103386.

It is an arithmetic number, because the mean of its divisors is an integer number (3512880).

Almost surely, 2^13844813 is an apocalyptic number.

It is an amenable number.

13844813 is a deficient number, since it is larger than the sum of its proper divisors (206707).

13844813 is an equidigital number, since it uses as much as digits as its factorization.

13844813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206706.

The product of its digits is 9216, while the sum is 32.

The square root of 13844813 is about 3720.8618625259. The cubic root of 13844813 is about 240.1203852059.

The spelling of 13844813 in words is "thirteen million, eight hundred forty-four thousand, eight hundred thirteen".