999968328 has 96 divisors (see below), whose sum is σ = 2956480800. Its totient is φ = 315767808.

The previous prime is 999968297. The next prime is 999968329. The reversal of 999968328 is 823869999.

999968328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (999968329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23400 + ... + 50472.

It is an arithmetic number, because the mean of its divisors is an integer number (30796675).

Almost surely, 2^999968328 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 999968328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1478240400).

999968328 is an abundant number, since it is smaller than the sum of its proper divisors (1956512472).

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

999968328 is a wasteful number, since it uses less digits than its factorization.

999968328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27113 (or 27097 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 63.

The square root of 999968328 is about 31622.2758194283. The cubic root of 999968328 is about 999.9894425552.

The spelling of 999968328 in words is "nine hundred ninety-nine million, nine hundred sixty-eight thousand, three hundred twenty-eight".