12982728 has 32 divisors (see below), whose sum is σ = 35408160. Its totient is φ = 3934080.

The previous prime is 12982709. The next prime is 12982729. The reversal of 12982728 is 82728921.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12982729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24325 + ... + 24852.

It is an arithmetic number, because the mean of its divisors is an integer number (1106505).

Almost surely, 2^12982728 is an apocalyptic number.

It is an amenable number.

12982728 is an abundant number, since it is smaller than the sum of its proper divisors (22425432).

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

12982728 is a wasteful number, since it uses less digits than its factorization.

12982728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49197 (or 49193 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 12982728 is about 3603.1552839144. The cubic root of 12982728 is about 235.0292886387.

The spelling of 12982728 in words is "twelve million, nine hundred eighty-two thousand, seven hundred twenty-eight".