9728994036 has 48 divisors (see below), whose sum is σ = 23101202880. Its totient is φ = 3185898240.

The previous prime is 9728994019. The next prime is 9728994047. The reversal of 9728994036 is 6304998279.

9728994036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1325256 + ... + 1332576.

It is an arithmetic number, because the mean of its divisors is an integer number (481275060).

Almost surely, 2^9728994036 is an apocalyptic number.

It is an amenable number.

9728994036 is an abundant number, since it is smaller than the sum of its proper divisors (13372208844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9728994036 is a wasteful number, since it uses less digits than its factorization.

9728994036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9264 (or 9262 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 57.

The square root of 9728994036 is about 98635.6631041734. The cubic root of 9728994036 is about 2134.7940272276.

The spelling of 9728994036 in words is "nine billion, seven hundred twenty-eight million, nine hundred ninety-four thousand, thirty-six".