2882021 has 2 divisors, whose sum is σ = 2882022. Its totient is φ = 2882020.

The previous prime is 2881951. The next prime is 2882023. The reversal of 2882021 is 1202882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2856100 + 25921 = 1690^2 + 161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2882021 is a prime.

Together with 2882023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2882023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1441010 + 1441011.

It is an arithmetic number, because the mean of its divisors is an integer number (1441011).

2^2882021 is an apocalyptic number.

It is an amenable number.

2882021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2882021 is an equidigital number, since it uses as much as digits as its factorization.

2882021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 2882021 is about 1697.6516132587. The cubic root of 2882021 is about 142.3090044044.

The spelling of 2882021 in words is "two million, eight hundred eighty-two thousand, twenty-one".