9726720 has 144 divisors (see below), whose sum is σ = 33112800. Its totient is φ = 2424832.

The previous prime is 9726713. The next prime is 9726733. The reversal of 9726720 is 276279.

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, 65206 + ... + 65354.

It is an arithmetic number, because the mean of its divisors is an integer number (229950).

Almost surely, 2^9726720 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 9726720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16556400).

9726720 is an abundant number, since it is smaller than the sum of its proper divisors (23386080).

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

9726720 is a wasteful number, since it uses less digits than its factorization.

9726720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 9726720 is about 3118.7689879181. The cubic root of 9726720 is about 213.4627686743.

The spelling of 9726720 in words is "nine million, seven hundred twenty-six thousand, seven hundred twenty".