6221971 has 12 divisors (see below), whose sum is σ = 7408632. Its totient is φ = 5207328.

The previous prime is 6221953. The next prime is 6221977. The reversal of 6221971 is 1791226.

It is a happy number.

6221971 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6221971 - 2⁹ = 6221459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6221977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 631 + ... + 3583.

It is an arithmetic number, because the mean of its divisors is an integer number (617386).

Almost surely, 2^6221971 is an apocalyptic number.

6221971 is a deficient number, since it is larger than the sum of its proper divisors (1186661).

6221971 is a wasteful number, since it uses less digits than its factorization.

6221971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3010 (or 3003 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

The square root of 6221971 is about 2494.3879008687. The cubic root of 6221971 is about 183.9258030240.

The spelling of 6221971 in words is "six million, two hundred twenty-one thousand, nine hundred seventy-one".