13689588 has 48 divisors (see below), whose sum is σ = 35146944. Its totient is φ = 4112640.

The previous prime is 13689587. The next prime is 13689589. The reversal of 13689588 is 88598631.

13689588 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13689587) and next prime (13689589).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13689587) 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, 17706 + ... + 18462.

It is an arithmetic number, because the mean of its divisors is an integer number (732228).

Almost surely, 2^13689588 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13689588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17573472).

13689588 is an abundant number, since it is smaller than the sum of its proper divisors (21457356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13689588 is a wasteful number, since it uses less digits than its factorization.

13689588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 910 counting only the distinct ones).

The product of its digits is 414720, while the sum is 48.

The square root of 13689588 is about 3699.9443239054. The cubic root of 13689588 is about 239.2196180447.

The spelling of 13689588 in words is "thirteen million, six hundred eighty-nine thousand, five hundred eighty-eight".