9999006928 has 10 divisors (see below), whose sum is σ = 19373075954. Its totient is φ = 4999503456.

The previous prime is 9999006923. The next prime is 9999006949. The reversal of 9999006928 is 8296009999.

It can be written as a sum of positive squares in only one way, i.e., 5219773504 + 4779233424 = 72248^2 + 69132^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999006923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312468951 + ... + 312468982.

Almost surely, 2^9999006928 is an apocalyptic number.

It is an amenable number.

9999006928 is a deficient number, since it is larger than the sum of its proper divisors (9374069026).

9999006928 is a wasteful number, since it uses less digits than its factorization.

9999006928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624937941 (or 624937935 counting only the distinct ones).

The product of its (nonzero) digits is 5668704, while the sum is 61.

The square root of 9999006928 is about 99995.0345167199. The cubic root of 9999006928 is about 2154.3633707121.

The spelling of 9999006928 in words is "nine billion, nine hundred ninety-nine million, six thousand, nine hundred twenty-eight".