13609667 has 4 divisors (see below), whose sum is σ = 13642416. Its totient is φ = 13576920.

The previous prime is 13609657. The next prime is 13609669. The reversal of 13609667 is 76690631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76690631 = 19 ⋅4036349.

It is a cyclic number.

It is not a de Polignac number, because 13609667 - 2²⁰ = 12561091 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 13609667.

It is not an unprimeable number, because it can be changed into a prime (13609669) 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, 15743 + ... + 16584.

It is an arithmetic number, because the mean of its divisors is an integer number (3410604).

Almost surely, 2^13609667 is an apocalyptic number.

13609667 is a deficient number, since it is larger than the sum of its proper divisors (32749).

13609667 is an equidigital number, since it uses as much as digits as its factorization.

13609667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32748.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 13609667 is about 3689.1282168014. The cubic root of 13609667 is about 238.7531808829.

The spelling of 13609667 in words is "thirteen million, six hundred nine thousand, six hundred sixty-seven".