622546 has 8 divisors (see below), whose sum is σ = 943740. Its totient is φ = 307968.

The previous prime is 622529. The next prime is 622547. The reversal of 622546 is 645226.

622546 is nontrivially palindromic in base 8.

It can be written as a sum of positive squares in 2 ways, for example, as 622521 + 25 = 789^2 + 5^2 .

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

It is a zygodrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 622546.

It is not an unprimeable number, because it can be changed into a prime (622547) by changing a digit.

622546 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 1411 + ... + 1798.

2⁶²²⁵⁴⁶ is an apocalyptic number.

622546 is a deficient number, since it is larger than the sum of its proper divisors (321194).

622546 is a wasteful number, since it uses less digits than its factorization.

622546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308.

The product of its digits is 2880, while the sum is 25.

The square root of 622546 is about 789.0158426800. The cubic root of 622546 is about 85.3867497318.

Subtracting from 622546 its sum of digits (25), we obtain a square (622521 = 789²).

The spelling of 622546 in words is "six hundred twenty-two thousand, five hundred forty-six".