13647489 has 8 divisors (see below), whose sum is σ = 18252000. Its totient is φ = 9070656.

The previous prime is 13647479. The next prime is 13647493. The reversal of 13647489 is 98474631.

13647489 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 13647489 - 2⁹ = 13646977 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 13647489.

It is not an unprimeable number, because it can be changed into a prime (13647479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5739 + ... + 7760.

It is an arithmetic number, because the mean of its divisors is an integer number (2281500).

Almost surely, 2^13647489 is an apocalyptic number.

It is an amenable number.

13647489 is a deficient number, since it is larger than the sum of its proper divisors (4604511).

13647489 is a wasteful number, since it uses less digits than its factorization.

13647489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13839.

The product of its digits is 145152, while the sum is 42.

The square root of 13647489 is about 3694.2508036136. The cubic root of 13647489 is about 238.9741456484.

The spelling of 13647489 in words is "thirteen million, six hundred forty-seven thousand, four hundred eighty-nine".