2821331 has 2 divisors, whose sum is σ = 2821332. Its totient is φ = 2821330.

The previous prime is 2821319. The next prime is 2821369. The reversal of 2821331 is 1331282.

2821331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2821331 - 2⁶ = 2821267 is a prime.

It is a super-2 number, since 2×2821331² = 15919817223122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2821831) by changing a digit.

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 as a sum of consecutive naturals, namely, 1410665 + 1410666.

It is an arithmetic number, because the mean of its divisors is an integer number (1410666).

2^2821331 is an apocalyptic number.

2821331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2821331 is an equidigital number, since it uses as much as digits as its factorization.

2821331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 2821331 is about 1679.6818151067. The cubic root of 2821331 is about 141.3029884469.

The spelling of 2821331 in words is "two million, eight hundred twenty-one thousand, three hundred thirty-one".