13996889 has 4 divisors (see below), whose sum is σ = 14011620. Its totient is φ = 13982160.

The previous prime is 13996861. The next prime is 13996907. The reversal of 13996889 is 98869931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98869931 = 617 ⋅160243.

It can be written as a sum of positive squares in 2 ways, for example, as 10291264 + 3705625 = 3208^2 + 1925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13996889 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 13996889.

It is not an unprimeable number, because it can be changed into a prime (13996819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5834 + ... + 7875.

It is an arithmetic number, because the mean of its divisors is an integer number (3502905).

Almost surely, 2^13996889 is an apocalyptic number.

It is an amenable number.

13996889 is a deficient number, since it is larger than the sum of its proper divisors (14731).

13996889 is a wasteful number, since it uses less digits than its factorization.

13996889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14730.

The product of its digits is 839808, while the sum is 53.

The square root of 13996889 is about 3741.2416388146. The cubic root of 13996889 is about 240.9963728270.

The spelling of 13996889 in words is "thirteen million, nine hundred ninety-six thousand, eight hundred eighty-nine".