9889572028 has 12 divisors (see below), whose sum is σ = 19779144112. Its totient is φ = 4238388000.

The previous prime is 9889572019. The next prime is 9889572041. The reversal of 9889572028 is 8202759889.

9889572028 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176599473 + ... + 176599528.

Almost surely, 2^9889572028 is an apocalyptic number.

It is an amenable number.

9889572028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9889572028 is a wasteful number, since it uses less digits than its factorization.

9889572028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353199012 (or 353199010 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 58.

The square root of 9889572028 is about 99446.3273731112. The cubic root of 9889572028 is about 2146.4749901620.

The spelling of 9889572028 in words is "nine billion, eight hundred eighty-nine million, five hundred seventy-two thousand, twenty-eight".