32728712 has 16 divisors (see below), whose sum is σ = 61437840. Its totient is φ = 16345296.

The previous prime is 32728711. The next prime is 32728721. The reversal of 32728712 is 21782723.

It is not an unprimeable number, because it can be changed into a prime (32728711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7163 + ... + 10805.

It is an arithmetic number, because the mean of its divisors is an integer number (3839865).

Almost surely, 2^32728712 is an apocalyptic number.

It is an amenable number.

32728712 is a deficient number, since it is larger than the sum of its proper divisors (28709128).

32728712 is a wasteful number, since it uses less digits than its factorization.

32728712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4772 (or 4768 counting only the distinct ones).

The product of its digits is 9408, while the sum is 32.

The square root of 32728712 is about 5720.9013275882. The cubic root of 32728712 is about 319.8720582284.

The spelling of 32728712 in words is "thirty-two million, seven hundred twenty-eight thousand, seven hundred twelve".