728639848 has 32 divisors (see below), whose sum is σ = 1420720200. Its totient is φ = 349913088.

The previous prime is 728639827. The next prime is 728639851. The reversal of 728639848 is 848936827.

728639848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 694744164 + 33895684 = 26358^2 + 5822^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36640 + ... + 52912.

Almost surely, 2^728639848 is an apocalyptic number.

It is an amenable number.

728639848 is a deficient number, since it is larger than the sum of its proper divisors (692080352).

728639848 is a wasteful number, since it uses less digits than its factorization.

728639848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16501 (or 16497 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 55.

The square root of 728639848 is about 26993.3296945745. The cubic root of 728639848 is about 899.8517648866.

The spelling of 728639848 in words is "seven hundred twenty-eight million, six hundred thirty-nine thousand, eight hundred forty-eight".