99870006 has 16 divisors (see below), whose sum is σ = 201314304. Its totient is φ = 33027624.

The previous prime is 99869989. The next prime is 99870011. The reversal of 99870006 is 60007899.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 64770 + ... + 66293.

It is an arithmetic number, because the mean of its divisors is an integer number (12582144).

Almost surely, 2^99870006 is an apocalyptic number.

99870006 is an abundant number, since it is smaller than the sum of its proper divisors (101444298).

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

99870006 is a wasteful number, since it uses less digits than its factorization.

99870006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131195.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 99870006 is about 9993.4981863209. The cubic root of 99870006 is about 463.9576699147.

The spelling of 99870006 in words is "ninety-nine million, eight hundred seventy thousand, six".