9928768 has 14 divisors (see below), whose sum is σ = 19702526. Its totient is φ = 4964352.

The previous prime is 9928747. The next prime is 9928783. The reversal of 9928768 is 8678299.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5053504 + 4875264 = 2248^2 + 2208^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77505 + ... + 77632.

Almost surely, 2^9928768 is an apocalyptic number.

It is an amenable number.

9928768 is a deficient number, since it is larger than the sum of its proper divisors (9773758).

9928768 is a wasteful number, since it uses less digits than its factorization.

9928768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155149 (or 155139 counting only the distinct ones).

The product of its digits is 435456, while the sum is 49.

The square root of 9928768 is about 3150.9947635628. The cubic root of 9928768 is about 214.9307005789.

The spelling of 9928768 in words is "nine million, nine hundred twenty-eight thousand, seven hundred sixty-eight".