99968520 has 64 divisors (see below), whose sum is σ = 303549120. Its totient is φ = 26334464.

The previous prime is 99968471. The next prime is 99968527. The reversal of 99968520 is 2586999.

It is a self number, because there is not a number n which added to its sum of digits gives 99968520.

It is not an unprimeable number, because it can be changed into a prime (99968527) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4942 + ... + 14978.

It is an arithmetic number, because the mean of its divisors is an integer number (4742955).

Almost surely, 2^99968520 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 99968520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151774560).

99968520 is an abundant number, since it is smaller than the sum of its proper divisors (203580600).

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

99968520 is a wasteful number, since it uses less digits than its factorization.

99968520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10134 (or 10130 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 99968520 is about 9998.4258761067. The cubic root of 99968520 is about 464.1101725107.

The spelling of 99968520 in words is "ninety-nine million, nine hundred sixty-eight thousand, five hundred twenty".