13927728 has 20 divisors (see below), whose sum is σ = 35980088. Its totient is φ = 4642560.

The previous prime is 13927723. The next prime is 13927751. The reversal of 13927728 is 82772931.

It is not an unprimeable number, because it can be changed into a prime (13927721) 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, 145033 + ... + 145128.

Almost surely, 2^13927728 is an apocalyptic number.

It is an amenable number.

13927728 is an abundant number, since it is smaller than the sum of its proper divisors (22052360).

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

13927728 is a wasteful number, since it uses less digits than its factorization.

13927728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290172 (or 290166 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 13927728 is about 3731.9871382415. The cubic root of 13927728 is about 240.5987826161.

The spelling of 13927728 in words is "thirteen million, nine hundred twenty-seven thousand, seven hundred twenty-eight".