622488861 has 16 divisors (see below), whose sum is σ = 925005120. Its totient is φ = 413732880.

The previous prime is 622488817. The next prime is 622488901. The reversal of 622488861 is 168884226.

622488861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 622488861 - 2⁷ = 622488733 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622288861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25890 + ... + 43763.

It is an arithmetic number, because the mean of its divisors is an integer number (57812820).

Almost surely, 2^622488861 is an apocalyptic number.

It is an amenable number.

622488861 is a deficient number, since it is larger than the sum of its proper divisors (302516259).

622488861 is a wasteful number, since it uses less digits than its factorization.

622488861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69993 (or 69987 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 622488861 is about 24949.7266718495. The cubic root of 622488861 is about 853.8413730754.

The spelling of 622488861 in words is "six hundred twenty-two million, four hundred eighty-eight thousand, eight hundred sixty-one".