2844421 has 2 divisors, whose sum is σ = 2844422. Its totient is φ = 2844420.

The previous prime is 2844397. The next prime is 2844427. The reversal of 2844421 is 1244482.

2844421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2608225 + 236196 = 1615^2 + 486^2 .

It is a cyclic number.

It is not a de Polignac number, because 2844421 - 2¹¹ = 2842373 is a prime.

It is a super-3 number, since 3×2844421³ = 69040333993988491383, which contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2844427) 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, 1422210 + 1422211.

It is an arithmetic number, because the mean of its divisors is an integer number (1422211).

2^2844421 is an apocalyptic number.

It is an amenable number.

2844421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2844421 is an equidigital number, since it uses as much as digits as its factorization.

2844421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2048, while the sum is 25.

The square root of 2844421 is about 1686.5411349860. The cubic root of 2844421 is about 141.6874199508.

The spelling of 2844421 in words is "two million, eight hundred forty-four thousand, four hundred twenty-one".