9728189306 has 16 divisors (see below), whose sum is σ = 16076471328. Its totient is φ = 4378122000.

The previous prime is 9728189281. The next prime is 9728189333. The reversal of 9728189306 is 6039818279.

9728189306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2186840 + ... + 2191283.

It is an arithmetic number, because the mean of its divisors is an integer number (1004779458).

Almost surely, 2^9728189306 is an apocalyptic number.

9728189306 is a deficient number, since it is larger than the sum of its proper divisors (6348282022).

9728189306 is a wasteful number, since it uses less digits than its factorization.

9728189306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4378237.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 9728189306 is about 98631.5837143458. The cubic root of 9728189306 is about 2134.7351660490.

The spelling of 9728189306 in words is "nine billion, seven hundred twenty-eight million, one hundred eighty-nine thousand, three hundred six".