13381889 has 8 divisors (see below), whose sum is σ = 13628160. Its totient is φ = 13137696.

The previous prime is 13381859. The next prime is 13381891. The reversal of 13381889 is 98818331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13381889 - 2⁸ = 13381633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13381859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18044 + ... + 18770.

It is an arithmetic number, because the mean of its divisors is an integer number (1703520).

Almost surely, 2^13381889 is an apocalyptic number.

It is an amenable number.

13381889 is a deficient number, since it is larger than the sum of its proper divisors (246271).

13381889 is an equidigital number, since it uses as much as digits as its factorization.

13381889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039.

The product of its digits is 41472, while the sum is 41.

The square root of 13381889 is about 3658.1264330255. The cubic root of 13381889 is about 237.4137171340.

The spelling of 13381889 in words is "thirteen million, three hundred eighty-one thousand, eight hundred eighty-nine".