13688011 has 4 divisors (see below), whose sum is σ = 13875592. Its totient is φ = 13500432.

The previous prime is 13687997. The next prime is 13688027. The reversal of 13688011 is 11088631.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13688011 - 2¹³ = 13679819 is a prime.

It is a super-2 number, since 2×13688011² = 374723290272242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13688041) 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 3 ways as a sum of consecutive naturals, for example, 93681 + ... + 93826.

It is an arithmetic number, because the mean of its divisors is an integer number (3468898).

Almost surely, 2^13688011 is an apocalyptic number.

13688011 is a deficient number, since it is larger than the sum of its proper divisors (187581).

13688011 is an equidigital number, since it uses as much as digits as its factorization.

13688011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187580.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 13688011 is about 3699.7312064527. The cubic root of 13688011 is about 239.2104318948.

The spelling of 13688011 in words is "thirteen million, six hundred eighty-eight thousand, eleven".