9928560 has 80 divisors (see below), whose sum is σ = 31560480. Its totient is φ = 2580480.

The previous prime is 9928553. The next prime is 9928577. The reversal of 9928560 is 658299.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9336 + ... + 10344.

It is an arithmetic number, because the mean of its divisors is an integer number (394506).

Almost surely, 2^9928560 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 9928560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15780240).

9928560 is an abundant number, since it is smaller than the sum of its proper divisors (21631920).

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

9928560 is a wasteful number, since it uses less digits than its factorization.

9928560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066 (or 1060 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 9928560 is about 3150.9617579399. The cubic root of 9928560 is about 214.9291996912.

The spelling of 9928560 in words is "nine million, nine hundred twenty-eight thousand, five hundred sixty".