622563 has 4 divisors (see below), whose sum is σ = 830088. Its totient is φ = 415040.

The previous prime is 622561. The next prime is 622571. The reversal of 622563 is 365226.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 622563 - 2¹ = 622561 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (622561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103758 + ... + 103763.

It is an arithmetic number, because the mean of its divisors is an integer number (207522).

2⁶²²⁵⁶³ is an apocalyptic number.

622563 is a deficient number, since it is larger than the sum of its proper divisors (207525).

622563 is a wasteful number, since it uses less digits than its factorization.

622563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207524.

The product of its digits is 2160, while the sum is 24.

The square root of 622563 is about 789.0266155207. The cubic root of 622563 is about 85.3875269496.

Adding to 622563 its reverse (365226), we get a palindrome (987789).

The spelling of 622563 in words is "six hundred twenty-two thousand, five hundred sixty-three".