9221666 has 16 divisors (see below), whose sum is σ = 14503104. Its totient is φ = 4389264.

The previous prime is 9221659. The next prime is 9221683. The reversal of 9221666 is 6661229.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13796 + ... + 14448.

It is an arithmetic number, because the mean of its divisors is an integer number (906444).

Almost surely, 2^9221666 is an apocalyptic number.

9221666 is a deficient number, since it is larger than the sum of its proper divisors (5281438).

9221666 is a wasteful number, since it uses less digits than its factorization.

9221666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985.

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

The square root of 9221666 is about 3036.7196116863. The cubic root of 9221666 is about 209.7022689403.

The spelling of 9221666 in words is "nine million, two hundred twenty-one thousand, six hundred sixty-six".