13287937 has 8 divisors (see below), whose sum is σ = 14351400. Its totient is φ = 12230400.

The previous prime is 13287917. The next prime is 13287941. The reversal of 13287937 is 73978231.

13287937 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6754801 + 6533136 = 2599^2 + 2556^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13287937 - 2²³ = 4899329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13287937.

It is not an unprimeable number, because it can be changed into a prime (13287917) 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, 3939 + ... + 6487.

It is an arithmetic number, because the mean of its divisors is an integer number (1793925).

Almost surely, 2^13287937 is an apocalyptic number.

It is an amenable number.

13287937 is a deficient number, since it is larger than the sum of its proper divisors (1063463).

13287937 is a wasteful number, since it uses less digits than its factorization.

13287937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963.

The product of its digits is 63504, while the sum is 40.

The square root of 13287937 is about 3645.2622676565. The cubic root of 13287937 is about 236.8567977743.

The spelling of 13287937 in words is "thirteen million, two hundred eighty-seven thousand, nine hundred thirty-seven".