2193866 has 8 divisors (see below), whose sum is σ = 3360960. Its totient is φ = 1073548.

The previous prime is 2193853. The next prime is 2193881. The reversal of 2193866 is 6683912.

2193866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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 3 ways as a sum of consecutive naturals, for example, 11576 + ... + 11763.

It is an arithmetic number, because the mean of its divisors is an integer number (420120).

2^2193866 is an apocalyptic number.

2193866 is a deficient number, since it is larger than the sum of its proper divisors (1167094).

2193866 is a wasteful number, since it uses less digits than its factorization.

2193866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23388.

The product of its digits is 15552, while the sum is 35.

The square root of 2193866 is about 1481.1704830977. The cubic root of 2193866 is about 129.9381559884.

The spelling of 2193866 in words is "two million, one hundred ninety-three thousand, eight hundred sixty-six".