728864584 has 16 divisors (see below), whose sum is σ = 1561852800. Its totient is φ = 312370512.

The previous prime is 728864561. The next prime is 728864621. The reversal of 728864584 is 485468827.

It is a happy number.

728864584 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6507664 + ... + 6507775.

It is an arithmetic number, because the mean of its divisors is an integer number (97615800).

Almost surely, 2^728864584 is an apocalyptic number.

It is an amenable number.

728864584 is an abundant number, since it is smaller than the sum of its proper divisors (832988216).

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

728864584 is a wasteful number, since it uses less digits than its factorization.

728864584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13015452 (or 13015448 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 52.

The square root of 728864584 is about 26997.4921798303. The cubic root of 728864584 is about 899.9442698001.

The spelling of 728864584 in words is "seven hundred twenty-eight million, eight hundred sixty-four thousand, five hundred eighty-four".