99896720 has 80 divisors (see below), whose sum is σ = 289588608. Its totient is φ = 31134720.

The previous prime is 99896717. The next prime is 99896747. The reversal of 99896720 is 2769899.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 1949 + ... + 14268.

Almost surely, 2^99896720 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 99896720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144794304).

99896720 is an abundant number, since it is smaller than the sum of its proper divisors (189691888).

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

99896720 is a wasteful number, since it uses less digits than its factorization.

99896720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16248 (or 16242 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 99896720 is about 9994.8346659662. The cubic root of 99896720 is about 463.9990338862. Note that the first 3 decimals are identical.

The spelling of 99896720 in words is "ninety-nine million, eight hundred ninety-six thousand, seven hundred twenty".