728947748 has 12 divisors (see below), whose sum is σ = 1276009392. Its totient is φ = 364373640.

The previous prime is 728947697. The next prime is 728947759. The reversal of 728947748 is 847749827.

It is a happy number.

728947748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 728947693 and 728947702.

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, 7298 + ... + 38873.

It is an arithmetic number, because the mean of its divisors is an integer number (106334116).

Almost surely, 2^728947748 is an apocalyptic number.

It is an amenable number.

728947748 is a deficient number, since it is larger than the sum of its proper divisors (547061644).

728947748 is a wasteful number, since it uses less digits than its factorization.

728947748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50122 (or 50120 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 56.

The square root of 728947748 is about 26999.0323530307. The cubic root of 728947748 is about 899.9784966056.

The spelling of 728947748 in words is "seven hundred twenty-eight million, nine hundred forty-seven thousand, seven hundred forty-eight".