2866816 has 16 divisors (see below), whose sum is σ = 5711490. Its totient is φ = 1433344.

The previous prime is 2866811. The next prime is 2866819. The reversal of 2866816 is 6186682.

2866816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1700416 + 1166400 = 1304^2 + 1080^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a pancake number, because a pancake can be divided into 2866816 parts by 2394 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (2866811) 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, 11071 + ... + 11326.

2^2866816 is an apocalyptic number.

It is an amenable number.

2866816 is a deficient number, since it is larger than the sum of its proper divisors (2844674).

2866816 is an equidigital number, since it uses as much as digits as its factorization.

2866816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22411 (or 22399 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 2866816 is about 1693.1674459427. The cubic root of 2866816 is about 142.0582978242.

The spelling of 2866816 in words is "two million, eight hundred sixty-six thousand, eight hundred sixteen".