622089 has 18 divisors (see below), whose sum is σ = 975390. Its totient is φ = 381888.

The previous prime is 622073. The next prime is 622091. The reversal of 622089 is 980226.

622089 = 142² + 143² + ... + 167².

622089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 36864 + 585225 = 192^2 + 765^2 .

It is not a de Polignac number, because 622089 - 2⁴ = 622073 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 622089.

It is not an unprimeable number, because it can be changed into a prime (622009) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1317 + ... + 1725.

2⁶²²⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

622089 is a deficient number, since it is larger than the sum of its proper divisors (353301).

622089 is a wasteful number, since it uses less digits than its factorization.

622089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 622089 is about 788.7261882301. The cubic root of 622089 is about 85.3658509832.

The spelling of 622089 in words is "six hundred twenty-two thousand, eighty-nine".