99860005 has 16 divisors (see below), whose sum is σ = 137165184. Its totient is φ = 68368320.

The previous prime is 99859999. The next prime is 99860017. The reversal of 99860005 is 50006899.

It is not a de Polignac number, because 99860005 - 2⁹ = 99859493 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 25210 + ... + 28900.

It is an arithmetic number, because the mean of its divisors is an integer number (8572824).

Almost surely, 2^99860005 is an apocalyptic number.

It is an amenable number.

99860005 is a deficient number, since it is larger than the sum of its proper divisors (37305179).

99860005 is a wasteful number, since it uses less digits than its factorization.

99860005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4476.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 99860005 is about 9992.9977984587. The cubic root of 99860005 is about 463.9421824634.

The spelling of 99860005 in words is "ninety-nine million, eight hundred sixty thousand, five".