13688211 has 8 divisors (see below), whose sum is σ = 18270144. Its totient is φ = 9115880.

The previous prime is 13688173. The next prime is 13688221. The reversal of 13688211 is 11288631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13688211 - 2⁷ = 13688083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13688221) 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 7 ways as a sum of consecutive naturals, for example, 2176 + ... + 5666.

It is an arithmetic number, because the mean of its divisors is an integer number (2283768).

Almost surely, 2^13688211 is an apocalyptic number.

13688211 is a deficient number, since it is larger than the sum of its proper divisors (4581933).

13688211 is a wasteful number, since it uses less digits than its factorization.

13688211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801.

The product of its digits is 2304, while the sum is 30.

The square root of 13688211 is about 3699.7582353446. The cubic root of 13688211 is about 239.2115969497.

The spelling of 13688211 in words is "thirteen million, six hundred eighty-eight thousand, two hundred eleven".