99209320 has 80 divisors (see below), whose sum is σ = 260661060. Its totient is φ = 33981696.

The previous prime is 99209309. The next prime is 99209323. The reversal of 99209320 is 2390299.

It can be written as a sum of positive squares in 2 ways, for example, as 94128804 + 5080516 = 9702^2 + 2254^2 .

It is not an unprimeable number, because it can be changed into a prime (99209323) 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 19 ways as a sum of consecutive naturals, for example, 95524 + ... + 96556.

Almost surely, 2^99209320 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 99209320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130330530).

99209320 is an abundant number, since it is smaller than the sum of its proper divisors (161451740).

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

99209320 is a wasteful number, since it uses less digits than its factorization.

99209320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 99209320 is about 9960.3875426612. The cubic root of 99209320 is about 462.9323077428.

The spelling of 99209320 in words is "ninety-nine million, two hundred nine thousand, three hundred twenty".