9791660 has 48 divisors (see below), whose sum is σ = 22498560. Its totient is φ = 3563520.

The previous prime is 9791657. The next prime is 9791687. The reversal of 9791660 is 661979.

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 15 ways as a sum of consecutive naturals, for example, 10076 + ... + 11004.

It is an arithmetic number, because the mean of its divisors is an integer number (468720).

Almost surely, 2^9791660 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 9791660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11249280).

9791660 is an abundant number, since it is smaller than the sum of its proper divisors (12706900).

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

9791660 is a wasteful number, since it uses less digits than its factorization.

9791660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 9791660 is about 3129.1628273390. The cubic root of 9791660 is about 213.9367734722.

The spelling of 9791660 in words is "nine million, seven hundred ninety-one thousand, six hundred sixty".