999808096 has 96 divisors (see below), whose sum is σ = 2291224320. Its totient is φ = 420650496.

The previous prime is 999808057. The next prime is 999808169. The reversal of 999808096 is 690808999.

It is a self number, because there is not a number n which added to its sum of digits gives 999808096.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5075070 + ... + 5075266.

It is an arithmetic number, because the mean of its divisors is an integer number (23866920).

Almost surely, 2^999808096 is an apocalyptic number.

999808096 is the 18256-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999808096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1145612160).

999808096 is an abundant number, since it is smaller than the sum of its proper divisors (1291416224).

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

999808096 is a wasteful number, since it uses less digits than its factorization.

999808096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 58.

The square root of 999808096 is about 31619.7421874373. The cubic root of 999808096 is about 999.9360279077.

The spelling of 999808096 in words is "nine hundred ninety-nine million, eight hundred eight thousand, ninety-six".