13884891 has 4 divisors (see below), whose sum is σ = 18513192. Its totient is φ = 9256592.

The previous prime is 13884889. The next prime is 13884919. The reversal of 13884891 is 19848831.

13884891 is digitally balanced in base 3, 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 13884891 - 2¹ = 13884889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13884841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2314146 + ... + 2314151.

It is an arithmetic number, because the mean of its divisors is an integer number (4628298).

Almost surely, 2^13884891 is an apocalyptic number.

13884891 is a deficient number, since it is larger than the sum of its proper divisors (4628301).

13884891 is an equidigital number, since it uses as much as digits as its factorization.

13884891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4628300.

The product of its digits is 55296, while the sum is 42.

The square root of 13884891 is about 3726.2435508163. The cubic root of 13884891 is about 240.3518623571.

The spelling of 13884891 in words is "thirteen million, eight hundred eighty-four thousand, eight hundred ninety-one".