622557 has 24 divisors (see below), whose sum is σ = 1028664. Its totient is φ = 359424.

The previous prime is 622549. The next prime is 622561. The reversal of 622557 is 755226.

It can be written as a sum of positive squares in 4 ways, for example, as 36 + 622521 = 6^2 + 789^2 .

It is not a de Polignac number, because 622557 - 2³ = 622549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 622557.

It is a congruent number.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1833 + ... + 2145.

It is an arithmetic number, because the mean of its divisors is an integer number (42861).

2⁶²²⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

622557 is a deficient number, since it is larger than the sum of its proper divisors (406107).

622557 is a wasteful number, since it uses less digits than its factorization.

622557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 346 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 622557 is about 789.0228133584. The cubic root of 622557 is about 85.3872526390.

The spelling of 622557 in words is "six hundred twenty-two thousand, five hundred fifty-seven".