12893728 has 24 divisors (see below), whose sum is σ = 25537680. Its totient is φ = 6408000.

The previous prime is 12893717. The next prime is 12893729. The reversal of 12893728 is 82739821.

It is not an unprimeable number, because it can be changed into a prime (12893729) 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, 4603 + ... + 6853.

It is an arithmetic number, because the mean of its divisors is an integer number (1064070).

Almost surely, 2^12893728 is an apocalyptic number.

It is an amenable number.

12893728 is a deficient number, since it is larger than the sum of its proper divisors (12643952).

12893728 is a wasteful number, since it uses less digits than its factorization.

12893728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440 (or 2432 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 12893728 is about 3590.7837584572. The cubic root of 12893728 is about 234.4909942699.

The spelling of 12893728 in words is "twelve million, eight hundred ninety-three thousand, seven hundred twenty-eight".