9876720 has 80 divisors (see below), whose sum is σ = 34997760. Its totient is φ = 2257152.

The previous prime is 9876719. The next prime is 9876761. The reversal of 9876720 is 276789.

9876720 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 1260 + ... + 4619.

It is an arithmetic number, because the mean of its divisors is an integer number (437472).

Almost surely, 2^9876720 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 9876720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17498880).

9876720 is an abundant number, since it is smaller than the sum of its proper divisors (25121040).

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

9876720 is a wasteful number, since it uses less digits than its factorization.

9876720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902 (or 5896 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 9876720 is about 3142.7249322841. The cubic root of 9876720 is about 214.5544767388.

The spelling of 9876720 in words is "nine million, eight hundred seventy-six thousand, seven hundred twenty".