728801608 has 16 divisors (see below), whose sum is σ = 1366843500. Its totient is φ = 364310016.

The previous prime is 728801597. The next prime is 728801627. The reversal of 728801608 is 806108827.

It can be written as a sum of positive squares in 2 ways, for example, as 726733764 + 2067844 = 26958^2 + 1438^2 .

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, 32928 + ... + 50416.

Almost surely, 2^728801608 is an apocalyptic number.

It is an amenable number.

728801608 is a deficient number, since it is larger than the sum of its proper divisors (638041892).

728801608 is a wasteful number, since it uses less digits than its factorization.

728801608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22704 (or 22700 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 728801608 is about 26996.3258240821. The cubic root of 728801608 is about 899.9183497944.

The spelling of 728801608 in words is "seven hundred twenty-eight million, eight hundred one thousand, six hundred eight".