6221863 has 8 divisors (see below), whose sum is σ = 6526800. Its totient is φ = 5923008.

The previous prime is 6221849. The next prime is 6221867. The reversal of 6221863 is 3681226.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6221863 - 2²¹ = 4124711 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 (6221867) 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 7 ways as a sum of consecutive naturals, for example, 648 + ... + 3586.

It is an arithmetic number, because the mean of its divisors is an integer number (815850).

Almost surely, 2^6221863 is an apocalyptic number.

6221863 is a deficient number, since it is larger than the sum of its proper divisors (304937).

6221863 is a wasteful number, since it uses less digits than its factorization.

6221863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041.

The product of its digits is 3456, while the sum is 28.

The square root of 6221863 is about 2494.3662521771. The cubic root of 6221863 is about 183.9247388327.

It can be divided in two parts, 622 and 1863, that added together give a triangular number (2485 = T₇₀).

The spelling of 6221863 in words is "six million, two hundred twenty-one thousand, eight hundred sixty-three".