13643712 has 42 divisors (see below), whose sum is σ = 39108888. Its totient is φ = 4547712.

The previous prime is 13643711. The next prime is 13643719. The reversal of 13643712 is 21734631.

13643712 is a `hidden beast` number, since 1 + 3 + 643 + 7 + 12 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13643711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11268 + ... + 12419.

It is an arithmetic number, because the mean of its divisors is an integer number (931164).

Almost surely, 2^13643712 is an apocalyptic number.

13643712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13643712 is an abundant number, since it is smaller than the sum of its proper divisors (25465176).

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

13643712 is a wasteful number, since it uses less digits than its factorization.

13643712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23705 (or 23692 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 13643712 is about 3693.7395685132. The cubic root of 13643712 is about 238.9520979142.

The spelling of 13643712 in words is "thirteen million, six hundred forty-three thousand, seven hundred twelve".