13489487 has 24 divisors (see below), whose sum is σ = 16093440. Its totient is φ = 11203920.

The previous prime is 13489481. The next prime is 13489529. The reversal of 13489487 is 78498431.

13489487 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13489487 - 2¹² = 13485391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13489481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170714 + ... + 170792.

It is an arithmetic number, because the mean of its divisors is an integer number (670560).

Almost surely, 2^13489487 is an apocalyptic number.

13489487 is a deficient number, since it is larger than the sum of its proper divisors (2603953).

13489487 is a wasteful number, since it uses less digits than its factorization.

13489487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 152 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 13489487 is about 3672.8036974497. The cubic root of 13489487 is about 238.0483330504.

The spelling of 13489487 in words is "thirteen million, four hundred eighty-nine thousand, four hundred eighty-seven".