622864868 has 48 divisors (see below), whose sum is σ = 1137991680. Its totient is φ = 298108704.

The previous prime is 622864861. The next prime is 622864889. The reversal of 622864868 is 868468226.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (622864861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2793005 + ... + 2793227.

It is an arithmetic number, because the mean of its divisors is an integer number (23708160).

Almost surely, 2^622864868 is an apocalyptic number.

It is an amenable number.

622864868 is a deficient number, since it is larger than the sum of its proper divisors (515126812).

622864868 is a wasteful number, since it uses less digits than its factorization.

622864868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 534 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 50.

The square root of 622864868 is about 24957.2608272623. The cubic root of 622864868 is about 854.0132560508.

The spelling of 622864868 in words is "six hundred twenty-two million, eight hundred sixty-four thousand, eight hundred sixty-eight".