2184866 has 4 divisors (see below), whose sum is σ = 3277302. Its totient is φ = 1092432.

The previous prime is 2184863. The next prime is 2184869. The reversal of 2184866 is 6684812.

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

It is an interprime number because it is at equal distance from previous prime (2184863) and next prime (2184869).

It can be written as a sum of positive squares in only one way, i.e., 2163841 + 21025 = 1471^2 + 145^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2184863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546215 + ... + 546218.

2^2184866 is an apocalyptic number.

2184866 is a deficient number, since it is larger than the sum of its proper divisors (1092436).

2184866 is a wasteful number, since it uses less digits than its factorization.

2184866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092435.

The product of its digits is 18432, while the sum is 35.

The square root of 2184866 is about 1478.1292230384. The cubic root of 2184866 is about 129.7602286502.

The spelling of 2184866 in words is "two million, one hundred eighty-four thousand, eight hundred sixty-six".