2166968 has 16 divisors (see below), whose sum is σ = 4240080. Its totient is φ = 1036288.

The previous prime is 2166961. The next prime is 2166977. The reversal of 2166968 is 8696612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5705 + ... + 6072.

It is an arithmetic number, because the mean of its divisors is an integer number (265005).

2^2166968 is an apocalyptic number.

It is an amenable number.

2166968 is a deficient number, since it is larger than the sum of its proper divisors (2073112).

2166968 is a wasteful number, since it uses less digits than its factorization.

2166968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11806 (or 11802 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 2166968 is about 1472.0624986732. The cubic root of 2166968 is about 129.4049331348.

The spelling of 2166968 in words is "two million, one hundred sixty-six thousand, nine hundred sixty-eight".