2882321 has 4 divisors (see below), whose sum is σ = 3104052. Its totient is φ = 2660592.

The previous prime is 2882309. The next prime is 2882323. The reversal of 2882321 is 1232882.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1073296 + 1809025 = 1036^2 + 1345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2882321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2882323) 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 in 3 ways as a sum of consecutive naturals, for example, 110846 + ... + 110871.

It is an arithmetic number, because the mean of its divisors is an integer number (776013).

2^2882321 is an apocalyptic number.

It is an amenable number.

2882321 is a deficient number, since it is larger than the sum of its proper divisors (221731).

2882321 is a wasteful number, since it uses less digits than its factorization.

2882321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221730.

The product of its digits is 1536, while the sum is 26.

The square root of 2882321 is about 1697.7399683108. The cubic root of 2882321 is about 142.3139420529.

The spelling of 2882321 in words is "two million, eight hundred eighty-two thousand, three hundred twenty-one".