622522 has 8 divisors (see below), whose sum is σ = 940500. Its totient is φ = 309024.

The previous prime is 622519. The next prime is 622529. The reversal of 622522 is 225226.

It is a Cunningham number, because it is equal to 789²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 622521 + 1 = 789^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 622522.

It is not an unprimeable number, because it can be changed into a prime (622529) 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, 747 + ... + 1342.

2⁶²²⁵²² is an apocalyptic number.

622522 is a deficient number, since it is larger than the sum of its proper divisors (317978).

622522 is a wasteful number, since it uses less digits than its factorization.

622522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240.

The product of its digits is 480, while the sum is 19.

The square root of 622522 is about 789.0006337133. Note that the first 3 decimals coincide. The cubic root of 622522 is about 85.3856524590.

Adding to 622522 its reverse (225226), we get a palindrome (847748).

The spelling of 622522 in words is "six hundred twenty-two thousand, five hundred twenty-two".