99860012 has 12 divisors (see below), whose sum is σ = 199720080. Its totient is φ = 42797136.

The previous prime is 99859999. The next prime is 99860017. The reversal of 99860012 is 21006899.

99860012 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (99860017) 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 3 ways as a sum of consecutive naturals, for example, 1783187 + ... + 1783242.

It is an arithmetic number, because the mean of its divisors is an integer number (16643340).

Almost surely, 2^99860012 is an apocalyptic number.

It is an amenable number.

99860012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

99860012 is a wasteful number, since it uses less digits than its factorization.

99860012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566440 (or 3566438 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 99860012 is about 9992.9981487039. The cubic root of 99860012 is about 463.9421933039.

The spelling of 99860012 in words is "ninety-nine million, eight hundred sixty thousand, twelve".