9928992 has 48 divisors (see below), whose sum is σ = 26520480. Its totient is φ = 3251712.

The previous prime is 9928981. The next prime is 9928999. The reversal of 9928992 is 2998299.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (9928999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4788 + ... + 6540.

It is an arithmetic number, because the mean of its divisors is an integer number (552510).

Almost surely, 2^9928992 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 9928992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13260240).

9928992 is an abundant number, since it is smaller than the sum of its proper divisors (16591488).

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

9928992 is a wasteful number, since it uses less digits than its factorization.

9928992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825 (or 1817 counting only the distinct ones).

The product of its digits is 209952, while the sum is 48.

The square root of 9928992 is about 3151.0303076930. The cubic root of 9928992 is about 214.9323168961.

The spelling of 9928992 in words is "nine million, nine hundred twenty-eight thousand, nine hundred ninety-two".