6622895 has 4 divisors (see below), whose sum is σ = 7947480. Its totient is φ = 5298312.

The previous prime is 6622867. The next prime is 6622897. The reversal of 6622895 is 5982266.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6622895 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622897) 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 3 ways as a sum of consecutive naturals, for example, 662285 + ... + 662294.

It is an arithmetic number, because the mean of its divisors is an integer number (1986870).

Almost surely, 2^6622895 is an apocalyptic number.

6622895 is a deficient number, since it is larger than the sum of its proper divisors (1324585).

6622895 is a wasteful number, since it uses less digits than its factorization.

6622895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324584.

The product of its digits is 51840, while the sum is 38.

The square root of 6622895 is about 2573.4985914121. The cubic root of 6622895 is about 187.7943938265.

The spelling of 6622895 in words is "six million, six hundred twenty-two thousand, eight hundred ninety-five".