6221773 has 2 divisors, whose sum is σ = 6221774. Its totient is φ = 6221772.

The previous prime is 6221771. The next prime is 6221819. The reversal of 6221773 is 3771226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6215049 + 6724 = 2493^2 + 82^2 .

It is a cyclic number.

It is not a de Polignac number, because 6221773 - 2¹ = 6221771 is a prime.

Together with 6221771, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6221771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110886 + 3110887.

It is an arithmetic number, because the mean of its divisors is an integer number (3110887).

Almost surely, 2^6221773 is an apocalyptic number.

It is an amenable number.

6221773 is a deficient number, since it is larger than the sum of its proper divisors (1).

6221773 is an equidigital number, since it uses as much as digits as its factorization.

6221773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 28.

The square root of 6221773 is about 2494.3482114573. The cubic root of 6221773 is about 183.9238519973.

Adding to 6221773 its reverse (3771226), we get a palindrome (9992999).

The spelling of 6221773 in words is "six million, two hundred twenty-one thousand, seven hundred seventy-three".