989222564 has 12 divisors (see below), whose sum is σ = 1888515888. Its totient is φ = 449646600.

The previous prime is 989222519. The next prime is 989222569. The reversal of 989222564 is 465222989.

It is a super-2 number, since 2×989222564² = 1957122562253468192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (989222569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11241122 + ... + 11241209.

It is an arithmetic number, because the mean of its divisors is an integer number (157376324).

Almost surely, 2^989222564 is an apocalyptic number.

It is an amenable number.

989222564 is a deficient number, since it is larger than the sum of its proper divisors (899293324).

989222564 is a wasteful number, since it uses less digits than its factorization.

989222564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22482346 (or 22482344 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 989222564 is about 31451.9087497087. The cubic root of 989222564 is about 996.3945375971.

The spelling of 989222564 in words is "nine hundred eighty-nine million, two hundred twenty-two thousand, five hundred sixty-four".