99999086 has 16 divisors (see below), whose sum is σ = 168058800. Its totient is φ = 44225280.

The previous prime is 99999079. The next prime is 99999089. The reversal of 99999086 is 68099999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99999089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60611 + ... + 62238.

It is an arithmetic number, because the mean of its divisors is an integer number (10503675).

Almost surely, 2^99999086 is an apocalyptic number.

99999086 is a deficient number, since it is larger than the sum of its proper divisors (68059714).

99999086 is a wasteful number, since it uses less digits than its factorization.

99999086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122899.

The product of its (nonzero) digits is 2834352, while the sum is 59.

The square root of 99999086 is about 9999.9542998956. The cubic root of 99999086 is about 464.1574692196.

The spelling of 99999086 in words is "ninety-nine million, nine hundred ninety-nine thousand, eighty-six".