622289089 has 4 divisors (see below), whose sum is σ = 622829956. Its totient is φ = 621748224.

The previous prime is 622289053. The next prime is 622289123. The reversal of 622289089 is 980982226.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 344733489 + 277555600 = 18567^2 + 16660^2 .

It is a cyclic number.

It is not a de Polignac number, because 622289089 - 2⁹ = 622288577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622289039) 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, 268704 + ... + 271009.

It is an arithmetic number, because the mean of its divisors is an integer number (155707489).

Almost surely, 2^622289089 is an apocalyptic number.

It is an amenable number.

622289089 is a deficient number, since it is larger than the sum of its proper divisors (540867).

622289089 is a wasteful number, since it uses less digits than its factorization.

622289089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540866.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 622289089 is about 24945.7228598411. The cubic root of 622289089 is about 853.7500237305.

It can be divided in two parts, 62228 and 9089, that added together give a palindrome (71317).

The spelling of 622289089 in words is "six hundred twenty-two million, two hundred eighty-nine thousand, eighty-nine".