13989567 has 16 divisors (see below), whose sum is σ = 19877760. Its totient is φ = 8726112.

The previous prime is 13989541. The next prime is 13989581. The reversal of 13989567 is 76598931.

It is not a de Polignac number, because 13989567 - 2¹⁵ = 13956799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13989067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3253 + ... + 6209.

It is an arithmetic number, because the mean of its divisors is an integer number (1242360).

Almost surely, 2^13989567 is an apocalyptic number.

13989567 is a deficient number, since it is larger than the sum of its proper divisors (5888193).

13989567 is a wasteful number, since it uses less digits than its factorization.

13989567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062.

The product of its digits is 408240, while the sum is 48.

The square root of 13989567 is about 3740.2629586702. The cubic root of 13989567 is about 240.9543424581.

The spelling of 13989567 in words is "thirteen million, nine hundred eighty-nine thousand, five hundred sixty-seven".