8989622533 has 4 divisors (see below), whose sum is σ = 8990168908. Its totient is φ = 8989076160.

The previous prime is 8989622501. The next prime is 8989622561. The reversal of 8989622533 is 3352269898.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3352269898 = 2 ⋅1676134949.

It can be written as a sum of positive squares in 2 ways, for example, as 5351361409 + 3638261124 = 73153^2 + 60318^2 .

It is a cyclic number.

It is not a de Polignac number, because 8989622533 - 2⁵ = 8989622501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8989622233) 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, 247716 + ... + 281677.

It is an arithmetic number, because the mean of its divisors is an integer number (2247542227).

Almost surely, 2^8989622533 is an apocalyptic number.

It is an amenable number.

8989622533 is a deficient number, since it is larger than the sum of its proper divisors (546375).

8989622533 is a wasteful number, since it uses less digits than its factorization.

8989622533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546374.

The product of its digits is 5598720, while the sum is 55.

The square root of 8989622533 is about 94813.6199762460. The cubic root of 8989622533 is about 2079.2840340466.

The spelling of 8989622533 in words is "eight billion, nine hundred eighty-nine million, six hundred twenty-two thousand, five hundred thirty-three".