9996128 has 48 divisors (see below), whose sum is σ = 21273840. Its totient is φ = 4608000.

The previous prime is 9996089. The next prime is 9996137. The reversal of 9996128 is 8216999.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24728 + ... + 25128.

It is an arithmetic number, because the mean of its divisors is an integer number (443205).

Almost surely, 2^9996128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9996128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10636920).

9996128 is an abundant number, since it is smaller than the sum of its proper divisors (11277712).

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

9996128 is a wasteful number, since it uses less digits than its factorization.

9996128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 463 counting only the distinct ones).

The product of its digits is 69984, while the sum is 44.

The square root of 9996128 is about 3161.6653839393. The cubic root of 9996128 is about 215.4156588431.

The spelling of 9996128 in words is "nine million, nine hundred ninety-six thousand, one hundred twenty-eight".