2860866 has 32 divisors (see below), whose sum is σ = 6566400. Its totient is φ = 922320.

The previous prime is 2860853. The next prime is 2860883. The reversal of 2860866 is 6680682.

2860866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2860866.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 820 + ... + 2528.

It is an arithmetic number, because the mean of its divisors is an integer number (205200).

2^2860866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2860866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3283200).

2860866 is an abundant number, since it is smaller than the sum of its proper divisors (3705534).

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

2860866 is a wasteful number, since it uses less digits than its factorization.

2860866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751 (or 1745 counting only the distinct ones).

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

The square root of 2860866 is about 1691.4094714173. The cubic root of 2860866 is about 141.9599503533.

The spelling of 2860866 in words is "two million, eight hundred sixty thousand, eight hundred sixty-six".