13287667 has 4 divisors (see below), whose sum is σ = 13325040. Its totient is φ = 13250296.

The previous prime is 13287643. The next prime is 13287697. The reversal of 13287667 is 76678231.

13287667 is digitally balanced in base 2, 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13287667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13287607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18148 + ... + 18865.

It is an arithmetic number, because the mean of its divisors is an integer number (3331260).

Almost surely, 2^13287667 is an apocalyptic number.

13287667 is a deficient number, since it is larger than the sum of its proper divisors (37373).

13287667 is an equidigital number, since it uses as much as digits as its factorization.

13287667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37372.

The product of its digits is 84672, while the sum is 40.

The square root of 13287667 is about 3645.2252330960. The cubic root of 13287667 is about 236.8551935180.

The spelling of 13287667 in words is "thirteen million, two hundred eighty-seven thousand, six hundred sixty-seven".