99530784 has 144 divisors (see below), whose sum is σ = 310466520. Its totient is φ = 30105600.

The previous prime is 99530771. The next prime is 99530791. The reversal of 99530784 is 48703599.

It can be written as a sum of positive squares in 4 ways, for example, as 99440784 + 90000 = 9972^2 + 300^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141634 + ... + 142334.

Almost surely, 2^99530784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99530784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155233260).

99530784 is an abundant number, since it is smaller than the sum of its proper divisors (210935736).

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

99530784 is a wasteful number, since it uses less digits than its factorization.

99530784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 99530784 is about 9976.5116147880. The cubic root of 99530784 is about 463.4317756888.

The spelling of 99530784 in words is "ninety-nine million, five hundred thirty thousand, seven hundred eighty-four".