9989528 has 8 divisors (see below), whose sum is σ = 18730380. Its totient is φ = 4994760.

The previous prime is 9989509. The next prime is 9989569. The reversal of 9989528 is 8259899.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624338 + ... + 624353.

Almost surely, 2^9989528 is an apocalyptic number.

It is an amenable number.

9989528 is a deficient number, since it is larger than the sum of its proper divisors (8740852).

9989528 is a wasteful number, since it uses less digits than its factorization.

9989528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248697 (or 1248693 counting only the distinct ones).

The product of its digits is 466560, while the sum is 50.

The square root of 9989528 is about 3160.6214578782. The cubic root of 9989528 is about 215.3682386031.

The spelling of 9989528 in words is "nine million, nine hundred eighty-nine thousand, five hundred twenty-eight".