6221047 has 4 divisors (see below), whose sum is σ = 7109776. Its totient is φ = 5332320.

The previous prime is 6221041. The next prime is 6221071. The reversal of 6221047 is 7401226.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6221047 - 2¹⁹ = 5696759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221041) 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 in 3 ways as a sum of consecutive naturals, for example, 444354 + ... + 444367.

It is an arithmetic number, because the mean of its divisors is an integer number (1777444).

Almost surely, 2^6221047 is an apocalyptic number.

6221047 is a deficient number, since it is larger than the sum of its proper divisors (888729).

6221047 is an equidigital number, since it uses as much as digits as its factorization.

6221047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888728.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 6221047 is about 2494.2026782120. The cubic root of 6221047 is about 183.9166978784.

The spelling of 6221047 in words is "six million, two hundred twenty-one thousand, forty-seven".