729582728 has 16 divisors (see below), whose sum is σ = 1563391680. Its totient is φ = 312678288.

The previous prime is 729582719. The next prime is 729582743. The reversal of 729582728 is 827285927.

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, 6514076 + ... + 6514187.

It is an arithmetic number, because the mean of its divisors is an integer number (97711980).

Almost surely, 2^729582728 is an apocalyptic number.

It is an amenable number.

729582728 is an abundant number, since it is smaller than the sum of its proper divisors (833808952).

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

729582728 is a wasteful number, since it uses less digits than its factorization.

729582728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13028276 (or 13028272 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 50.

The square root of 729582728 is about 27010.7891036156. The cubic root of 729582728 is about 900.2397418932.

The spelling of 729582728 in words is "seven hundred twenty-nine million, five hundred eighty-two thousand, seven hundred twenty-eight".