13388487 has 16 divisors (see below), whose sum is σ = 20954112. Its totient is φ = 7443360.

The previous prime is 13388471. The next prime is 13388491. The reversal of 13388487 is 78488331.

13388487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13388487 - 2⁴ = 13388471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13388087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7839 + ... + 9392.

It is an arithmetic number, because the mean of its divisors is an integer number (1309632).

Almost surely, 2^13388487 is an apocalyptic number.

13388487 is a deficient number, since it is larger than the sum of its proper divisors (7565625).

13388487 is a wasteful number, since it uses less digits than its factorization.

13388487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17278.

The product of its digits is 129024, while the sum is 42.

The square root of 13388487 is about 3659.0281496594. The cubic root of 13388487 is about 237.4527300199.

The spelling of 13388487 in words is "thirteen million, three hundred eighty-eight thousand, four hundred eighty-seven".