2213647 has 2 divisors, whose sum is σ = 2213648. Its totient is φ = 2213646.

The previous prime is 2213623. The next prime is 2213677. The reversal of 2213647 is 7463122.

2213647 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 a de Polignac number, because none of the positive numbers 2^k-2213647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2213677) 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, 1106823 + 1106824.

It is an arithmetic number, because the mean of its divisors is an integer number (1106824).

2^2213647 is an apocalyptic number.

2213647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2213647 is an equidigital number, since it uses as much as digits as its factorization.

2213647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 25.

The square root of 2213647 is about 1487.8329879392. The cubic root of 2213647 is about 130.3275173667.

Adding to 2213647 its reverse (7463122), we get a palindrome (9676769).

The spelling of 2213647 in words is "two million, two hundred thirteen thousand, six hundred forty-seven".