6622866 has 24 divisors (see below), whose sum is σ = 14414400. Its totient is φ = 2197656.

The previous prime is 6622859. The next prime is 6622867. The reversal of 6622866 is 6682266.

It is a self number, because there is not a number n which added to its sum of digits gives 6622866.

It is not an unprimeable number, because it can be changed into a prime (6622867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4035 + ... + 5433.

It is an arithmetic number, because the mean of its divisors is an integer number (600600).

Almost surely, 2^6622866 is an apocalyptic number.

6622866 is an abundant number, since it is smaller than the sum of its proper divisors (7791534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6622866 is a wasteful number, since it uses less digits than its factorization.

6622866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670 (or 1667 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 6622866 is about 2573.4929570527. The cubic root of 6622866 is about 187.7941197246.

The spelling of 6622866 in words is "six million, six hundred twenty-two thousand, eight hundred sixty-six".