2871822 has 8 divisors (see below), whose sum is σ = 5743656. Its totient is φ = 957272.

The previous prime is 2871811. The next prime is 2871833. The reversal of 2871822 is 2281782.

It is a happy number.

2871822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2871811) and next prime (2871833).

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

2871822 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2871822.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 239313 + ... + 239324.

It is an arithmetic number, because the mean of its divisors is an integer number (717957).

2^2871822 is an apocalyptic number.

2871822 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.

2871822 is a wasteful number, since it uses less digits than its factorization.

2871822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478642.

The product of its digits is 3584, while the sum is 30.

The square root of 2871822 is about 1694.6450955879. The cubic root of 2871822 is about 142.1409365786.

The spelling of 2871822 in words is "two million, eight hundred seventy-one thousand, eight hundred twenty-two".