2866287 has 8 divisors (see below), whose sum is σ = 3829680. Its totient is φ = 1906880.

The previous prime is 2866277. The next prime is 2866289. The reversal of 2866287 is 7826682.

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

It is a cyclic number.

It is not a de Polignac number, because 2866287 - 2⁴ = 2866271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2866289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1837 + ... + 3017.

It is an arithmetic number, because the mean of its divisors is an integer number (478710).

2^2866287 is an apocalyptic number.

2866287 is a deficient number, since it is larger than the sum of its proper divisors (963393).

2866287 is a wasteful number, since it uses less digits than its factorization.

2866287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993.

The product of its digits is 64512, while the sum is 39.

The square root of 2866287 is about 1693.0112226444. The cubic root of 2866287 is about 142.0495595047.

The spelling of 2866287 in words is "two million, eight hundred sixty-six thousand, two hundred eighty-seven".