13387712 has 28 divisors (see below), whose sum is σ = 28611576. Its totient is φ = 6178560.

The previous prime is 13387711. The next prime is 13387727. The reversal of 13387712 is 21778331.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13387711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7214 + ... + 8877.

It is an arithmetic number, because the mean of its divisors is an integer number (1021842).

Almost surely, 2^13387712 is an apocalyptic number.

It is an amenable number.

13387712 is an abundant number, since it is smaller than the sum of its proper divisors (15223864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13387712 is a wasteful number, since it uses less digits than its factorization.

13387712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16116 (or 16106 counting only the distinct ones).

The product of its digits is 7056, while the sum is 32.

The square root of 13387712 is about 3658.9222456893. The cubic root of 13387712 is about 237.4481482372.

The spelling of 13387712 in words is "thirteen million, three hundred eighty-seven thousand, seven hundred twelve".