99865718 has 16 divisors (see below), whose sum is σ = 159045120. Its totient is φ = 46866816.

The previous prime is 99865673. The next prime is 99865751. The reversal of 99865718 is 81756899.

It is a self number, because there is not a number n which added to its sum of digits gives 99865718.

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, 9188 + ... + 16856.

It is an arithmetic number, because the mean of its divisors is an integer number (9940320).

Almost surely, 2^99865718 is an apocalyptic number.

99865718 is a deficient number, since it is larger than the sum of its proper divisors (59179402).

99865718 is a wasteful number, since it uses less digits than its factorization.

99865718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8071.

The product of its digits is 1088640, while the sum is 53.

The square root of 99865718 is about 9993.2836445285. The cubic root of 99865718 is about 463.9510296862.

The spelling of 99865718 in words is "ninety-nine million, eight hundred sixty-five thousand, seven hundred eighteen".