9909760 has 120 divisors (see below), whose sum is σ = 27989280. Its totient is φ = 3354624.

The previous prime is 9909751. The next prime is 9909763. The reversal of 9909760 is 679099.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9909763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125401 + ... + 125479.

It is an arithmetic number, because the mean of its divisors is an integer number (233244).

Almost surely, 2^9909760 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 9909760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13994640).

9909760 is an abundant number, since it is smaller than the sum of its proper divisors (18079520).

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

9909760 is an equidigital number, since it uses as much as digits as its factorization.

9909760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 9909760 is about 3147.9771282524. The cubic root of 9909760 is about 214.7934558702.

The spelling of 9909760 in words is "nine million, nine hundred nine thousand, seven hundred sixty".