2183866 has 8 divisors (see below), whose sum is σ = 3285504. Its totient is φ = 1088700.

The previous prime is 2183849. The next prime is 2183869. The reversal of 2183866 is 6683812.

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

It is a d-powerful number, because it can be written as 2²¹ + 1 + 8³ + 3⁸ + 8⁵ + 6³ + 6⁶ .

It is not an unprimeable number, because it can be changed into a prime (2183869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660 + ... + 2191.

It is an arithmetic number, because the mean of its divisors is an integer number (410688).

2^2183866 is an apocalyptic number.

2183866 is a deficient number, since it is larger than the sum of its proper divisors (1101638).

2183866 is a wasteful number, since it uses less digits than its factorization.

2183866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236.

The product of its digits is 13824, while the sum is 34.

The square root of 2183866 is about 1477.7909189056. The cubic root of 2183866 is about 129.7404288043.

It can be divided in two parts, 21838 and 66, that added together give a square (21904 = 148²).

The spelling of 2183866 in words is "two million, one hundred eighty-three thousand, eight hundred sixty-six".