2867886 has 56 divisors (see below), whose sum is σ = 7397424. Its totient is φ = 816480.

The previous prime is 2867873. The next prime is 2867911. The reversal of 2867886 is 6887682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 10066 + ... + 10346.

2^2867886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2867886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3698712).

2867886 is an abundant number, since it is smaller than the sum of its proper divisors (4529538).

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

2867886 is an equidigital number, since it uses as much as digits as its factorization.

2867886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 293 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 2867886 is about 1693.4833923012. The cubic root of 2867886 is about 142.0759694004.

The spelling of 2867886 in words is "two million, eight hundred sixty-seven thousand, eight hundred eighty-six".