9720832 has 44 divisors (see below), whose sum is σ = 21223296. Its totient is φ = 4413440.

The previous prime is 9720827. The next prime is 9720833. The reversal of 9720832 is 2380279.

It is a tau number, because it is divible by the number of its divisors (44).

It is a junction number, because it is equal to n+sod(n) for n = 9720794 and 9720803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9720833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10833 + ... + 11695.

Almost surely, 2^9720832 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 9720832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10611648).

9720832 is an abundant number, since it is smaller than the sum of its proper divisors (11502464).

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

9720832 is a wasteful number, since it uses less digits than its factorization.

9720832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 9720832 is about 3117.8248828310. The cubic root of 9720832 is about 213.4196872628.

The spelling of 9720832 in words is "nine million, seven hundred twenty thousand, eight hundred thirty-two".