6622447 has 8 divisors (see below), whose sum is σ = 7158816. Its totient is φ = 6089952.

The previous prime is 6622423. The next prime is 6622457. The reversal of 6622447 is 7442266.

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 6622447 - 2¹¹ = 6620399 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 (6622457) 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, 3318 + ... + 4924.

It is an arithmetic number, because the mean of its divisors is an integer number (894852).

Almost surely, 2^6622447 is an apocalyptic number.

6622447 is a deficient number, since it is larger than the sum of its proper divisors (536369).

6622447 is a wasteful number, since it uses less digits than its factorization.

6622447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937.

The product of its digits is 16128, while the sum is 31.

The square root of 6622447 is about 2573.4115488977. The cubic root of 6622447 is about 187.7901593346.

The spelling of 6622447 in words is "six million, six hundred twenty-two thousand, four hundred forty-seven".