9722166 has 16 divisors (see below), whose sum is σ = 19919088. Its totient is φ = 3161600.

The previous prime is 9722137. The next prime is 9722177. The reversal of 9722166 is 6612279.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 19515 + ... + 20006.

It is an arithmetic number, because the mean of its divisors is an integer number (1244943).

Almost surely, 2^9722166 is an apocalyptic number.

9722166 is an abundant number, since it is smaller than the sum of its proper divisors (10196922).

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

9722166 is a wasteful number, since it uses less digits than its factorization.

9722166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39567.

The product of its digits is 9072, while the sum is 33.

The square root of 9722166 is about 3118.0388066860. The cubic root of 9722166 is about 213.4294494190.

The spelling of 9722166 in words is "nine million, seven hundred twenty-two thousand, one hundred sixty-six".