9928668 has 12 divisors (see below), whose sum is σ = 23166920. Its totient is φ = 3309552.

The previous prime is 9928661. The next prime is 9928669. The reversal of 9928668 is 8668299.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9928661) 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, 413683 + ... + 413706.

Almost surely, 2^9928668 is an apocalyptic number.

It is an amenable number.

9928668 is an abundant number, since it is smaller than the sum of its proper divisors (13238252).

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

9928668 is a wasteful number, since it uses less digits than its factorization.

9928668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827396 (or 827394 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 9928668 is about 3150.9788955180. The cubic root of 9928668 is about 214.9299790009.

The spelling of 9928668 in words is "nine million, nine hundred twenty-eight thousand, six hundred sixty-eight".