9923680 has 72 divisors (see below), whose sum is σ = 25456032. Its totient is φ = 3654144.

The previous prime is 9923677. The next prime is 9923701. The reversal of 9923680 is 863299.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 26857 + ... + 27223.

It is an arithmetic number, because the mean of its divisors is an integer number (353556).

Almost surely, 2^9923680 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 9923680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12728016).

9923680 is an abundant number, since it is smaller than the sum of its proper divisors (15532352).

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

9923680 is a wasteful number, since it uses less digits than its factorization.

9923680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 9923680 is about 3150.1872960191. The cubic root of 9923680 is about 214.8939805395.

The spelling of 9923680 in words is "nine million, nine hundred twenty-three thousand, six hundred eighty".