2821086 has 12 divisors (see below), whose sum is σ = 6112392. Its totient is φ = 940356.

The previous prime is 2821079. The next prime is 2821097. The reversal of 2821086 is 6801282.

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 5 ways as a sum of consecutive naturals, for example, 78346 + ... + 78381.

It is an arithmetic number, because the mean of its divisors is an integer number (509366).

2^2821086 is an apocalyptic number.

2821086 is an abundant number, since it is smaller than the sum of its proper divisors (3291306).

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

2821086 is a wasteful number, since it uses less digits than its factorization.

2821086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156735 (or 156732 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 2821086 is about 1679.6088830439. The cubic root of 2821086 is about 141.2988981512.

The spelling of 2821086 in words is "two million, eight hundred twenty-one thousand, eighty-six".