9641660 has 48 divisors (see below), whose sum is σ = 23540160. Its totient is φ = 3248640.

The previous prime is 9641657. The next prime is 9641741. The reversal of 9641660 is 661469.

9641660 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7976 + ... + 9104.

It is an arithmetic number, because the mean of its divisors is an integer number (490420).

Almost surely, 2^9641660 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 9641660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11770080).

9641660 is an abundant number, since it is smaller than the sum of its proper divisors (13898500).

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

9641660 is a wasteful number, since it uses less digits than its factorization.

9641660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206 (or 1204 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 9641660 is about 3105.1022527447. The cubic root of 9641660 is about 212.8387032229.

It can be divided in two parts, 9641 and 660, that added together give a palindrome (10301).

The spelling of 9641660 in words is "nine million, six hundred forty-one thousand, six hundred sixty".