2866866 has 8 divisors (see below), whose sum is σ = 5733744. Its totient is φ = 955620.

The previous prime is 2866847. The next prime is 2866867. The reversal of 2866866 is 6686682.

It is a sphenic number, since it is the product of 3 distinct primes.

2866866 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2866867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238900 + ... + 238911.

It is an arithmetic number, because the mean of its divisors is an integer number (716718).

2^2866866 is an apocalyptic number.

2866866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2866866 is a wasteful number, since it uses less digits than its factorization.

2866866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477816.

The product of its digits is 165888, while the sum is 42.

The square root of 2866866 is about 1693.1822111043. The cubic root of 2866866 is about 142.0591236967.

The spelling of 2866866 in words is "two million, eight hundred sixty-six thousand, eight hundred sixty-six".