728024689 has 16 divisors (see below), whose sum is σ = 851443200. Its totient is φ = 609513984.

The previous prime is 728024641. The next prime is 728024719. The reversal of 728024689 is 986420827.

728024689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 728024689 - 2⁹ = 728024177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728024629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185257 + ... + 189145.

It is an arithmetic number, because the mean of its divisors is an integer number (53215200).

Almost surely, 2^728024689 is an apocalyptic number.

It is an amenable number.

728024689 is a deficient number, since it is larger than the sum of its proper divisors (123418511).

728024689 is a wasteful number, since it uses less digits than its factorization.

728024689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4512.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 728024689 is about 26981.9326401946. The cubic root of 728024689 is about 899.5984583244.

The spelling of 728024689 in words is "seven hundred twenty-eight million, twenty-four thousand, six hundred eighty-nine".