13688895 has 16 divisors (see below), whose sum is σ = 23893632. Its totient is φ = 6636960.

The previous prime is 13688881. The next prime is 13688897. The reversal of 13688895 is 59888631.

13688895 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 13688895 - 2⁴ = 13688879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13688897) 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, 41317 + ... + 41646.

It is an arithmetic number, because the mean of its divisors is an integer number (1493352).

Almost surely, 2^13688895 is an apocalyptic number.

13688895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13688895 is a deficient number, since it is larger than the sum of its proper divisors (10204737).

13688895 is a wasteful number, since it uses less digits than its factorization.

13688895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82982.

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

The square root of 13688895 is about 3699.8506726623. The cubic root of 13688895 is about 239.2155813517.

The spelling of 13688895 in words is "thirteen million, six hundred eighty-eight thousand, eight hundred ninety-five".