9999112 has 32 divisors (see below), whose sum is σ = 20206080. Its totient is φ = 4625280.

The previous prime is 9999083. The next prime is 9999161. The reversal of 9999112 is 2119999.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4828 + ... + 6580.

It is an arithmetic number, because the mean of its divisors is an integer number (631440).

Almost surely, 2^9999112 is an apocalyptic number.

9999112 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

9999112 is an abundant number, since it is smaller than the sum of its proper divisors (10206968).

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

9999112 is a wasteful number, since it uses less digits than its factorization.

9999112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813 (or 1809 counting only the distinct ones).

The product of its digits is 13122, while the sum is 40.

The square root of 9999112 is about 3162.1372519231. The cubic root of 9999112 is about 215.4370916877.

The spelling of 9999112 in words is "nine million, nine hundred ninety-nine thousand, one hundred twelve".