13873689 has 12 divisors (see below), whose sum is σ = 20094100. Its totient is φ = 9224064.

The previous prime is 13873681. The next prime is 13873721. The reversal of 13873689 is 98637831.

It is a happy number.

13873689 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12131289 + 1742400 = 3483^2 + 1320^2 .

It is not a de Polignac number, because 13873689 - 2³ = 13873681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13873681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1797 + ... + 5565.

Almost surely, 2^13873689 is an apocalyptic number.

It is an amenable number.

13873689 is a deficient number, since it is larger than the sum of its proper divisors (6220411).

13873689 is a wasteful number, since it uses less digits than its factorization.

13873689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4184 (or 4181 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 13873689 is about 3724.7401251631. The cubic root of 13873689 is about 240.2872082438.

The spelling of 13873689 in words is "thirteen million, eight hundred seventy-three thousand, six hundred eighty-nine".