7822166 has 12 divisors (see below), whose sum is σ = 12897276. Its totient is φ = 3555420.

The previous prime is 7822151. The next prime is 7822187. The reversal of 7822166 is 6612287.

It is a super-2 number, since 2×7822166² = 122372561863112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15920 + ... + 16403.

It is an arithmetic number, because the mean of its divisors is an integer number (1074773).

Almost surely, 2^7822166 is an apocalyptic number.

7822166 is a deficient number, since it is larger than the sum of its proper divisors (5075110).

7822166 is a wasteful number, since it uses less digits than its factorization.

7822166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32347 (or 32336 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 7822166 is about 2796.8135440175. The cubic root of 7822166 is about 198.5069314687.

It can be divided in two parts, 78221 and 66, that added together give a palindrome (78287).

The spelling of 7822166 in words is "seven million, eight hundred twenty-two thousand, one hundred sixty-six".