13447889 has 8 divisors (see below), whose sum is σ = 16551360. Its totient is φ = 10640016.

The previous prime is 13447883. The next prime is 13447891. The reversal of 13447889 is 98874431.

13447889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13447889 - 2⁴ = 13447873 is a prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (13447883) 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, 73799 + ... + 73980.

It is an arithmetic number, because the mean of its divisors is an integer number (2068920).

Almost surely, 2^13447889 is an apocalyptic number.

It is an amenable number.

13447889 is a deficient number, since it is larger than the sum of its proper divisors (3103471).

13447889 is a wasteful number, since it uses less digits than its factorization.

13447889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147799.

The product of its digits is 193536, while the sum is 44.

The square root of 13447889 is about 3667.1363487059. The cubic root of 13447889 is about 237.8033884562.

The spelling of 13447889 in words is "thirteen million, four hundred forty-seven thousand, eight hundred eighty-nine".