13607687 has 4 divisors (see below), whose sum is σ = 13615200. Its totient is φ = 13600176.

The previous prime is 13607681. The next prime is 13607689. The reversal of 13607687 is 78670631.

13607687 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 78670631 = 13 ⋅6051587.

It is a cyclic number.

It is not a de Polignac number, because 13607687 - 2⁸ = 13607431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13607687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13607681) 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, 818 + ... + 5280.

It is an arithmetic number, because the mean of its divisors is an integer number (3403800).

Almost surely, 2^13607687 is an apocalyptic number.

13607687 is a deficient number, since it is larger than the sum of its proper divisors (7513).

13607687 is an equidigital number, since it uses as much as digits as its factorization.

13607687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7512.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 13607687 is about 3688.8598509567. The cubic root of 13607687 is about 238.7416019999.

The spelling of 13607687 in words is "thirteen million, six hundred seven thousand, six hundred eighty-seven".