728056996 has 12 divisors (see below), whose sum is σ = 1329495552. Its totient is φ = 348201128.

The previous prime is 728056981. The next prime is 728056999. The reversal of 728056996 is 699650827.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (728056999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3956740 + ... + 3956923.

It is an arithmetic number, because the mean of its divisors is an integer number (110791296).

Almost surely, 2^728056996 is an apocalyptic number.

It is an amenable number.

728056996 is a deficient number, since it is larger than the sum of its proper divisors (601438556).

728056996 is a wasteful number, since it uses less digits than its factorization.

728056996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7913690 (or 7913688 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 728056996 is about 26982.5313119433. The cubic root of 728056996 is about 899.6117650606.

The spelling of 728056996 in words is "seven hundred twenty-eight million, fifty-six thousand, nine hundred ninety-six".