6222779 has 4 divisors (see below), whose sum is σ = 6228576. Its totient is φ = 6216984.

The previous prime is 6222767. The next prime is 6222781. The reversal of 6222779 is 9772226.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6222779 - 2⁴ = 6222763 is a prime.

It is a d-powerful number, because it can be written as 6⁷ + 2⁶ + 2⁸ + 2¹⁰ + 7⁶ + 7⁸ + 9⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6222479) 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, 764 + ... + 3609.

It is an arithmetic number, because the mean of its divisors is an integer number (1557144).

Almost surely, 2^6222779 is an apocalyptic number.

6222779 is a deficient number, since it is larger than the sum of its proper divisors (5797).

6222779 is a wasteful number, since it uses less digits than its factorization.

6222779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5796.

The product of its digits is 21168, while the sum is 35.

The square root of 6222779 is about 2494.5498591930. The cubic root of 6222779 is about 183.9337643606.

The spelling of 6222779 in words is "six million, two hundred twenty-two thousand, seven hundred seventy-nine".