211427 has 2 divisors, whose sum is σ = 211428. Its totient is φ = 211426.

The previous prime is 211403. The next prime is 211433. The reversal of 211427 is 724112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211427 - 2¹⁰ = 210403 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 211427.

It is not a weakly prime, because it can be changed into another prime (211457) 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, 105713 + 105714.

It is an arithmetic number, because the mean of its divisors is an integer number (105714).

2²¹¹⁴²⁷ is an apocalyptic number.

211427 is a deficient number, since it is larger than the sum of its proper divisors (1).

211427 is an equidigital number, since it uses as much as digits as its factorization.

211427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112, while the sum is 17.

The square root of 211427 is about 459.8119180709. The cubic root of 211427 is about 59.5735502654.

Adding to 211427 its reverse (724112), we get a palindrome (935539).

The spelling of 211427 in words is "two hundred eleven thousand, four hundred twenty-seven", and thus it is an iban number.