622866 has 8 divisors (see below), whose sum is σ = 1245744. Its totient is φ = 207620.

The previous prime is 622861. The next prime is 622879. The reversal of 622866 is 668226.

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

622866 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 622866.

It is not an unprimeable number, because it can be changed into a prime (622861) by changing a digit.

622866 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51900 + ... + 51911.

It is an arithmetic number, because the mean of its divisors is an integer number (155718).

2⁶²²⁸⁶⁶ is an apocalyptic number.

622866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

622866 is a wasteful number, since it uses less digits than its factorization.

622866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103816.

The product of its digits is 6912, while the sum is 30.

The square root of 622866 is about 789.2186008958. The cubic root of 622866 is about 85.4013773414.

The spelling of 622866 in words is "six hundred twenty-two thousand, eight hundred sixty-six".