622424227 has 4 divisors (see below), whose sum is σ = 627932520. Its totient is φ = 616915936.

The previous prime is 622424219. The next prime is 622424267. The reversal of 622424227 is 722424226.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722424226 = 2 ⋅361212113.

It is a cyclic number.

It is not a de Polignac number, because 622424227 - 2³ = 622424219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622424267) 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, 2753977 + ... + 2754202.

It is an arithmetic number, because the mean of its divisors is an integer number (156983130).

Almost surely, 2^622424227 is an apocalyptic number.

622424227 is a deficient number, since it is larger than the sum of its proper divisors (5508293).

622424227 is a wasteful number, since it uses less digits than its factorization.

622424227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5508292.

The product of its digits is 21504, while the sum is 31.

The square root of 622424227 is about 24948.4313534940. The cubic root of 622424227 is about 853.8118201539.

Subtracting 622424227 from its reverse (722424226), we obtain a palindrome (99999999).

The spelling of 622424227 in words is "six hundred twenty-two million, four hundred twenty-four thousand, two hundred twenty-seven".