622008861 has 4 divisors (see below), whose sum is σ = 829345152. Its totient is φ = 414672572.

The previous prime is 622008847. The next prime is 622008899. The reversal of 622008861 is 168800226.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 622008861 - 2⁶ = 622008797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622008061) 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, 103668141 + ... + 103668146.

It is an arithmetic number, because the mean of its divisors is an integer number (207336288).

Almost surely, 2^622008861 is an apocalyptic number.

It is an amenable number.

622008861 is a deficient number, since it is larger than the sum of its proper divisors (207336291).

622008861 is a wasteful number, since it uses less digits than its factorization.

622008861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207336290.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 622008861 is about 24940.1054729125. The cubic root of 622008861 is about 853.6218514780.

The spelling of 622008861 in words is "six hundred twenty-two million, eight thousand, eight hundred sixty-one".