2086866 has 24 divisors (see below), whose sum is σ = 4552704. Its totient is φ = 690840.

The previous prime is 2086853. The next prime is 2086879. The reversal of 2086866 is 6686802.

It is an interprime number because it is at equal distance from previous prime (2086853) and next prime (2086879).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2086866.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3135 + ... + 3741.

It is an arithmetic number, because the mean of its divisors is an integer number (189696).

2^2086866 is an apocalyptic number.

2086866 is an abundant number, since it is smaller than the sum of its proper divisors (2465838).

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

2086866 is a wasteful number, since it uses less digits than its factorization.

2086866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 2086866 is about 1444.5989062712. The cubic root of 2086866 is about 127.7903877214.

The spelling of 2086866 in words is "two million, eighty-six thousand, eight hundred sixty-six".