999108 has 72 divisors (see below), whose sum is σ = 2926560. Its totient is φ = 292320.

The previous prime is 999101. The next prime is 999133. The reversal of 999108 is 801999.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (999101) 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, 34438 + ... + 34466.

2⁹⁹⁹¹⁰⁸ 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 999108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1463280).

999108 is an abundant number, since it is smaller than the sum of its proper divisors (1927452).

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

999108 is a wasteful number, since it uses less digits than its factorization.

999108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 999108 is about 999.5539004976. The cubic root of 999108 is about 99.9702578216.

The spelling of 999108 in words is "nine hundred ninety-nine thousand, one hundred eight".