2821338886 has 4 divisors (see below), whose sum is σ = 4232008332. Its totient is φ = 1410669442.

The previous prime is 2821338881. The next prime is 2821338917. The reversal of 2821338886 is 6888331282.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821338881) by changing a digit.

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 as a sum of consecutive naturals, namely, 705334720 + ... + 705334723.

It is an arithmetic number, because the mean of its divisors is an integer number (1058002083).

Almost surely, 2^2821338886 is an apocalyptic number.

2821338886 is a deficient number, since it is larger than the sum of its proper divisors (1410669446).

2821338886 is a wasteful number, since it uses less digits than its factorization.

2821338886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410669445.

The product of its digits is 884736, while the sum is 49.

The square root of 2821338886 is about 53116.2770344459. The cubic root of 2821338886 is about 1413.0312010042.

The spelling of 2821338886 in words is "two billion, eight hundred twenty-one million, three hundred thirty-eight thousand, eight hundred eighty-six".