2821884 has 24 divisors (see below), whose sum is σ = 7091280. Its totient is φ = 868224.

The previous prime is 2821877. The next prime is 2821909. The reversal of 2821884 is 4881282.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8889 + ... + 9200.

It is an arithmetic number, because the mean of its divisors is an integer number (295470).

2^2821884 is an apocalyptic number.

It is an amenable number.

2821884 is an abundant number, since it is smaller than the sum of its proper divisors (4269396).

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

2821884 is a wasteful number, since it uses less digits than its factorization.

2821884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18109 (or 18107 counting only the distinct ones).

The product of its digits is 8192, while the sum is 33.

The square root of 2821884 is about 1679.8464215517. The cubic root of 2821884 is about 141.3122199583.

It can be divided in two parts, 28 and 21884, that added together give a palindrome (21912).

The spelling of 2821884 in words is "two million, eight hundred twenty-one thousand, eight hundred eighty-four".