6221895 has 8 divisors (see below), whose sum is σ = 9955056. Its totient is φ = 3318336.

The previous prime is 6221879. The next prime is 6221909. The reversal of 6221895 is 5981226.

6221895 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6221895 - 2⁴ = 6221879 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 207382 + ... + 207411.

It is an arithmetic number, because the mean of its divisors is an integer number (1244382).

Almost surely, 2^6221895 is an apocalyptic number.

6221895 is a deficient number, since it is larger than the sum of its proper divisors (3733161).

6221895 is a wasteful number, since it uses less digits than its factorization.

6221895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414801.

The product of its digits is 8640, while the sum is 33.

The square root of 6221895 is about 2494.3726666238. The cubic root of 6221895 is about 183.9250541500.

The spelling of 6221895 in words is "six million, two hundred twenty-one thousand, eight hundred ninety-five".