99864886 has 16 divisors (see below), whose sum is σ = 165005568. Its totient is φ = 44951400.

The previous prime is 99864881. The next prime is 99864929. The reversal of 99864886 is 68846899.

It is a self number, because there is not a number n which added to its sum of digits gives 99864886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99864881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19770 + ... + 24301.

It is an arithmetic number, because the mean of its divisors is an integer number (10312848).

Almost surely, 2^99864886 is an apocalyptic number.

99864886 is a deficient number, since it is larger than the sum of its proper divisors (65140682).

99864886 is a wasteful number, since it uses less digits than its factorization.

99864886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44187.

The product of its digits is 5971968, while the sum is 58.

The square root of 99864886 is about 9993.2420164829. The cubic root of 99864886 is about 463.9497412617.

The spelling of 99864886 in words is "ninety-nine million, eight hundred sixty-four thousand, eight hundred eighty-six".