13386989 has 16 divisors (see below), whose sum is σ = 17418240. Its totient is φ = 9976560.

The previous prime is 13386983. The next prime is 13386991. The reversal of 13386989 is 98968331.

13386989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13386989 - 2⁸ = 13386733 is a prime.

It is a super-2 number, since 2×13386989² = 358422948972242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13386983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2009 + ... + 5550.

It is an arithmetic number, because the mean of its divisors is an integer number (1088640).

Almost surely, 2^13386989 is an apocalyptic number.

It is an amenable number.

13386989 is a deficient number, since it is larger than the sum of its proper divisors (4031251).

13386989 is a wasteful number, since it uses less digits than its factorization.

13386989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7600.

The product of its digits is 279936, while the sum is 47.

The square root of 13386989 is about 3658.8234447702. The cubic root of 13386989 is about 237.4438737178.

The spelling of 13386989 in words is "thirteen million, three hundred eighty-six thousand, nine hundred eighty-nine".