2841866 has 4 divisors (see below), whose sum is σ = 4262802. Its totient is φ = 1420932.

The previous prime is 2841851. The next prime is 2841869. The reversal of 2841866 is 6681482.

2841866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 2235025 + 606841 = 1495^2 + 779^2 .

It is not an unprimeable number, because it can be changed into a prime (2841869) by changing a digit.

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 as a sum of consecutive naturals, namely, 710465 + ... + 710468.

2^2841866 is an apocalyptic number.

2841866 is a deficient number, since it is larger than the sum of its proper divisors (1420936).

2841866 is a wasteful number, since it uses less digits than its factorization.

2841866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420935.

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

The square root of 2841866 is about 1685.7834973685. The cubic root of 2841866 is about 141.6449836864.

The spelling of 2841866 in words is "two million, eight hundred forty-one thousand, eight hundred sixty-six".