622775 has 12 divisors (see below), whose sum is σ = 799800. Its totient is φ = 480480.

The previous prime is 622751. The next prime is 622777. The reversal of 622775 is 577226.

It is a happy number.

It is not a de Polignac number, because 622775 - 2⁸ = 622519 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 622775.

It is not an unprimeable number, because it can be changed into a prime (622777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 296 + ... + 1154.

It is an arithmetic number, because the mean of its divisors is an integer number (66650).

2⁶²²⁷⁷⁵ is an apocalyptic number.

622775 is a deficient number, since it is larger than the sum of its proper divisors (177025).

622775 is a wasteful number, since it uses less digits than its factorization.

622775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898 (or 893 counting only the distinct ones).

The product of its digits is 5880, while the sum is 29.

The square root of 622775 is about 789.1609468290. The cubic root of 622775 is about 85.3972181248.

The spelling of 622775 in words is "six hundred twenty-two thousand, seven hundred seventy-five".