2216839 has 2 divisors, whose sum is σ = 2216840. Its totient is φ = 2216838.

The previous prime is 2216821. The next prime is 2216857. The reversal of 2216839 is 9386122.

2216839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (2216821) and next prime (2216857).

It is a cyclic number.

It is not a de Polignac number, because 2216839 - 2¹¹ = 2214791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2216839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2213839) 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, 1108419 + 1108420.

It is an arithmetic number, because the mean of its divisors is an integer number (1108420).

2^2216839 is an apocalyptic number.

2216839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216839 is an equidigital number, since it uses as much as digits as its factorization.

2216839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 2216839 is about 1488.9053025629. The cubic root of 2216839 is about 130.3901298249.

It can be divided in two parts, 22 and 16839, that added together give a palindrome (16861).

The spelling of 2216839 in words is "two million, two hundred sixteen thousand, eight hundred thirty-nine".