12884728 has 8 divisors (see below), whose sum is σ = 24158880. Its totient is φ = 6442360.

The previous prime is 12884699. The next prime is 12884737. The reversal of 12884728 is 82748821.

12884728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805288 + ... + 805303.

It is an arithmetic number, because the mean of its divisors is an integer number (3019860).

Almost surely, 2^12884728 is an apocalyptic number.

It is an amenable number.

12884728 is a deficient number, since it is larger than the sum of its proper divisors (11274152).

12884728 is a wasteful number, since it uses less digits than its factorization.

12884728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610597 (or 1610593 counting only the distinct ones).

The product of its digits is 57344, while the sum is 40.

The square root of 12884728 is about 3589.5303313943. The cubic root of 12884728 is about 234.4364222544.

The spelling of 12884728 in words is "twelve million, eight hundred eighty-four thousand, seven hundred twenty-eight".