728064908 has 12 divisors (see below), whose sum is σ = 1329510000. Its totient is φ = 348204912.

The previous prime is 728064893. The next prime is 728064913. The reversal of 728064908 is 809460827.

728064908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×728064908² = 1060157020522096928, which contains 22 as substring.

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, 3956783 + ... + 3956966.

It is an arithmetic number, because the mean of its divisors is an integer number (110792500).

Almost surely, 2^728064908 is an apocalyptic number.

It is an amenable number.

728064908 is a deficient number, since it is larger than the sum of its proper divisors (601445092).

728064908 is a wasteful number, since it uses less digits than its factorization.

728064908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7913776 (or 7913774 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 728064908 is about 26982.6779249206. The cubic root of 728064908 is about 899.6150238268.

The spelling of 728064908 in words is "seven hundred twenty-eight million, sixty-four thousand, nine hundred eight".