13311487 has 12 divisors (see below), whose sum is σ = 15602800. Its totient is φ = 11351928.

The previous prime is 13311479. The next prime is 13311491. The reversal of 13311487 is 78411331.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

13311487 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 13311487 - 2³ = 13311479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67473 + ... + 67669.

Almost surely, 2^13311487 is an apocalyptic number.

13311487 is a deficient number, since it is larger than the sum of its proper divisors (2291313).

13311487 is an frugal number, since it uses more digits than its factorization.

13311487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 204 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 13311487 is about 3648.4910579581. The cubic root of 13311487 is about 236.9966410415.

Multiplying 13311487 by its sum of digits (28), we get a square (372721636 = 19306²).

The spelling of 13311487 in words is "thirteen million, three hundred eleven thousand, four hundred eighty-seven".