99930012 has 144 divisors (see below), whose sum is σ = 309687840. Its totient is φ = 24772608.

The previous prime is 99929983. The next prime is 99930013. The reversal of 99930012 is 21003999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99930013) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 129564 + ... + 130332.

It is an arithmetic number, because the mean of its divisors is an integer number (2150610).

Almost surely, 2^99930012 is an apocalyptic number.

It is a pronic number, being equal to 9996×9997.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99930012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154843920).

99930012 is an abundant number, since it is smaller than the sum of its proper divisors (209757828).

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

99930012 is a wasteful number, since it uses less digits than its factorization.

99930012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 99930012 is about 9996.4999874956. The cubic root of 99930012 is about 464.0505729161.

The spelling of 99930012 in words is "ninety-nine million, nine hundred thirty thousand, twelve".