9928997584 has 20 divisors (see below), whose sum is σ = 20986290720. Its totient is φ = 4513180640.

The previous prime is 9928997569. The next prime is 9928997587. The reversal of 9928997584 is 4857998299.

9928997584 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9928997587) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28207204 + ... + 28207555.

It is an arithmetic number, because the mean of its divisors is an integer number (1049314536).

Almost surely, 2^9928997584 is an apocalyptic number.

It is an amenable number.

9928997584 is an abundant number, since it is smaller than the sum of its proper divisors (11057293136).

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

9928997584 is a wasteful number, since it uses less digits than its factorization.

9928997584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56414778 (or 56414772 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 70.

The square root of 9928997584 is about 99644.3555049658. The cubic root of 9928997584 is about 2149.3235718824.

The spelling of 9928997584 in words is "nine billion, nine hundred twenty-eight million, nine hundred ninety-seven thousand, five hundred eighty-four".