22166889 has 8 divisors (see below), whose sum is σ = 29719872. Its totient is φ = 14695920.

The previous prime is 22166843. The next prime is 22166899. The reversal of 22166889 is 98866122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22166889 - 2¹¹ = 22164841 is a prime.

It is a super-3 number, since 3×22166889³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22166889.

It is not an unprimeable number, because it can be changed into a prime (22166819) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19869 + ... + 20954.

It is an arithmetic number, because the mean of its divisors is an integer number (3714984).

Almost surely, 2^22166889 is an apocalyptic number.

It is an amenable number.

22166889 is a deficient number, since it is larger than the sum of its proper divisors (7552983).

22166889 is a wasteful number, since it uses less digits than its factorization.

22166889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41007.

The product of its digits is 82944, while the sum is 42.

The square root of 22166889 is about 4708.1725754267. The cubic root of 22166889 is about 280.9106785839.

The spelling of 22166889 in words is "twenty-two million, one hundred sixty-six thousand, eight hundred eighty-nine".