2089166 has 4 divisors (see below), whose sum is σ = 3133752. Its totient is φ = 1044582.

The previous prime is 2089151. The next prime is 2089169. The reversal of 2089166 is 6619802.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2089166² = 8729229151112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2089169) 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 as a sum of consecutive naturals, namely, 522290 + ... + 522293.

It is an arithmetic number, because the mean of its divisors is an integer number (783438).

2^2089166 is an apocalyptic number.

2089166 is a deficient number, since it is larger than the sum of its proper divisors (1044586).

2089166 is a wasteful number, since it uses less digits than its factorization.

2089166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044585.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2089166 is about 1445.3947557674. The cubic root of 2089166 is about 127.8373177398.

The spelling of 2089166 in words is "two million, eighty-nine thousand, one hundred sixty-six".