728847913 has 8 divisors (see below), whose sum is σ = 753016320. Its totient is φ = 704720640.

The previous prime is 728847907. The next prime is 728847929. The reversal of 728847913 is 319748827.

728847913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 728847913 - 2⁵ = 728847881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728847113) 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, 28068 + ... + 47386.

It is an arithmetic number, because the mean of its divisors is an integer number (94127040).

Almost surely, 2^728847913 is an apocalyptic number.

It is an amenable number.

728847913 is a deficient number, since it is larger than the sum of its proper divisors (24168407).

728847913 is a wasteful number, since it uses less digits than its factorization.

728847913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20567.

The product of its digits is 677376, while the sum is 49.

The square root of 728847913 is about 26997.1834271651. The cubic root of 728847913 is about 899.9374084043.

The spelling of 728847913 in words is "seven hundred twenty-eight million, eight hundred forty-seven thousand, nine hundred thirteen".