2804666 has 16 divisors (see below), whose sum is σ = 4622400. Its totient is φ = 1270368.

The previous prime is 2804639. The next prime is 2804693. The reversal of 2804666 is 6664082.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2804639) and next prime (2804693).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731 + ... + 2478.

It is an arithmetic number, because the mean of its divisors is an integer number (288900).

2^2804666 is an apocalyptic number.

2804666 is a deficient number, since it is larger than the sum of its proper divisors (1817734).

2804666 is a wasteful number, since it uses less digits than its factorization.

2804666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 2804666 is about 1674.7137068765. The cubic root of 2804666 is about 141.0242233252.

The spelling of 2804666 in words is "two million, eight hundred four thousand, six hundred sixty-six".