9688720 has 40 divisors (see below), whose sum is σ = 22694976. Its totient is φ = 3846528.

The previous prime is 9688711. The next prime is 9688739. The reversal of 9688720 is 278869.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12669 + ... + 13411.

Almost surely, 2^9688720 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 9688720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11347488).

9688720 is an abundant number, since it is smaller than the sum of its proper divisors (13006256).

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

9688720 is a wasteful number, since it uses less digits than its factorization.

9688720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 9688720 is about 3112.6708788434. The cubic root of 9688720 is about 213.1844229919.

The spelling of 9688720 in words is "nine million, six hundred eighty-eight thousand, seven hundred twenty".