9990098872 has 32 divisors (see below), whose sum is σ = 20867918400. Its totient is φ = 4451819904.

The previous prime is 9990098849. The next prime is 9990098873. The reversal of 9990098872 is 2788900999.

It is a self number, because there is not a number n which added to its sum of digits gives 9990098872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9990098873) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1653168 + ... + 1659199.

It is an arithmetic number, because the mean of its divisors is an integer number (652122450).

Almost surely, 2^9990098872 is an apocalyptic number.

It is an amenable number.

9990098872 is an abundant number, since it is smaller than the sum of its proper divisors (10877819528).

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

9990098872 is a wasteful number, since it uses less digits than its factorization.

9990098872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312415 (or 3312411 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 61.

The square root of 9990098872 is about 99950.4820998878. The cubic root of 9990098872 is about 2153.7234107769.

The spelling of 9990098872 in words is "nine billion, nine hundred ninety million, ninety-eight thousand, eight hundred seventy-two".