13006689 has 8 divisors (see below), whose sum is σ = 17365920. Its totient is φ = 8659296.

The previous prime is 13006667. The next prime is 13006691. The reversal of 13006689 is 98660031.

13006689 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13006689 - 2⁹ = 13006177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13006699) 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 7 ways as a sum of consecutive naturals, for example, 42 + ... + 5100.

It is an arithmetic number, because the mean of its divisors is an integer number (2170740).

Almost surely, 2^13006689 is an apocalyptic number.

It is an amenable number.

13006689 is a deficient number, since it is larger than the sum of its proper divisors (4359231).

13006689 is an equidigital number, since it uses as much as digits as its factorization.

13006689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5919.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 13006689 is about 3606.4787535767. The cubic root of 13006689 is about 235.1737902616.

It can be divided in two parts, 13006 and 689, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 13006689 in words is "thirteen million, six thousand, six hundred eighty-nine".