27622213 has 2 divisors, whose sum is σ = 27622214. Its totient is φ = 27622212.

The previous prime is 27622201. The next prime is 27622223. The reversal of 27622213 is 31222672.

27622213 is nontrivially palindromic in base 14.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27531009 + 91204 = 5247^2 + 302^2 .

It is a cyclic number.

It is not a de Polignac number, because 27622213 - 2⁹ = 27621701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27622223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13811106 + 13811107.

It is an arithmetic number, because the mean of its divisors is an integer number (13811107).

Almost surely, 2^27622213 is an apocalyptic number.

It is an amenable number.

27622213 is a deficient number, since it is larger than the sum of its proper divisors (1).

27622213 is an equidigital number, since it uses as much as digits as its factorization.

27622213 is an evil number, because the sum of its binary digits is even.

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

The square root of 27622213 is about 5255.6838755770. The cubic root of 27622213 is about 302.2870135192.

Adding to 27622213 its reverse (31222672), we get a palindrome (58844885).

The spelling of 27622213 in words is "twenty-seven million, six hundred twenty-two thousand, two hundred thirteen".