13489617 has 4 divisors (see below), whose sum is σ = 17986160. Its totient is φ = 8993076.

The previous prime is 13489607. The next prime is 13489621. The reversal of 13489617 is 71698431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-13489617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13489607) 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, 2248267 + ... + 2248272.

It is an arithmetic number, because the mean of its divisors is an integer number (4496540).

Almost surely, 2^13489617 is an apocalyptic number.

It is an amenable number.

13489617 is a deficient number, since it is larger than the sum of its proper divisors (4496543).

13489617 is an equidigital number, since it uses as much as digits as its factorization.

13489617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4496542.

The product of its digits is 36288, while the sum is 39.

The square root of 13489617 is about 3672.8213950586. The cubic root of 13489617 is about 238.0490977492.

The spelling of 13489617 in words is "thirteen million, four hundred eighty-nine thousand, six hundred seventeen".