6221008 has 10 divisors (see below), whose sum is σ = 12053234. Its totient is φ = 3110496.

The previous prime is 6221003. The next prime is 6221009. The reversal of 6221008 is 8001226.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6110784 + 110224 = 2472^2 + 332^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221003) 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 as a sum of consecutive naturals, namely, 194391 + ... + 194422.

Almost surely, 2^6221008 is an apocalyptic number.

It is an amenable number.

6221008 is a deficient number, since it is larger than the sum of its proper divisors (5832226).

6221008 is a wasteful number, since it uses less digits than its factorization.

6221008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388821 (or 388815 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 6221008 is about 2494.1948600701. The cubic root of 6221008 is about 183.9163135505.

The spelling of 6221008 in words is "six million, two hundred twenty-one thousand, eight".