13688007 has 4 divisors (see below), whose sum is σ = 18250680. Its totient is φ = 9125336.

The previous prime is 13687997. The next prime is 13688027. The reversal of 13688007 is 70088631.

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 13688007 - 2⁴ = 13687991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13688027) 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, 2281332 + ... + 2281337.

It is an arithmetic number, because the mean of its divisors is an integer number (4562670).

Almost surely, 2^13688007 is an apocalyptic number.

13688007 is a deficient number, since it is larger than the sum of its proper divisors (4562673).

13688007 is an equidigital number, since it uses as much as digits as its factorization.

13688007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4562672.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 13688007 is about 3699.7306658729. The cubic root of 13688007 is about 239.2104085936.

The spelling of 13688007 in words is "thirteen million, six hundred eighty-eight thousand, seven".