Search a number
6217 is a prime number

6217 has 2 divisors, whose sum is σ = 6218. Its totient is φ = 6216.

The previous prime is 6211. The next prime is 6221. The reversal of 6217 is 7126.

Subtracting 6217 from its reverse (7126), we obtain a palindrome (909).

6217 is nontrivially palindromic in base 4.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5776 + 441 = 76^2 + 21^2 .

It is a cyclic number.

It is not a de Polignac number, because 6217 - 27 = 6089 is a prime.

It is a pancake number, because a pancake can be divided into 6217 parts by 111 straight cuts.

It is a nialpdrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 6217.

It is not a weakly prime, because it can be changed into another prime (6211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3108 + 3109.

It is an arithmetic number, because the mean of its divisors is an integer number (3109).

26217 is an apocalyptic number.

It is an amenable number.

6217 is a deficient number, since it is larger than the sum of its proper divisors (1).

6217 is an equidigital number, since it uses as much as digits as its factorization.

6217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84, while the sum is 16.

The square root of 6217 is about 78.8479549513. The cubic root of 6217 is about 18.3876807898.

The spelling of 6217 in words is "six thousand, two hundred seventeen".