2804866 has 16 divisors (see below), whose sum is σ = 4385664. Its totient is φ = 1344304.

The previous prime is 2804861. The next prime is 2804887. The reversal of 2804866 is 6684082.

It is not an unprimeable number, because it can be changed into a prime (2804861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4701 + ... + 5263.

It is an arithmetic number, because the mean of its divisors is an integer number (274104).

2^2804866 is an apocalyptic number.

2804866 is a deficient number, since it is larger than the sum of its proper divisors (1580798).

2804866 is a wasteful number, since it uses less digits than its factorization.

2804866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 2804866 is about 1674.7734175106. The cubic root of 2804866 is about 141.0275753790.

The spelling of 2804866 in words is "two million, eight hundred four thousand, eight hundred sixty-six".