99216885 has 16 divisors (see below), whose sum is σ = 159318720. Its totient is φ = 52725120.

The previous prime is 99216857. The next prime is 99216889. The reversal of 99216885 is 58861299.

It is a happy number.

It is not a de Polignac number, because 99216885 - 2⁷ = 99216757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99216889) 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 15 ways as a sum of consecutive naturals, for example, 7555 + ... + 15984.

It is an arithmetic number, because the mean of its divisors is an integer number (9957420).

Almost surely, 2^99216885 is an apocalyptic number.

It is an amenable number.

99216885 is a deficient number, since it is larger than the sum of its proper divisors (60101835).

99216885 is a wasteful number, since it uses less digits than its factorization.

99216885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23828.

The product of its digits is 311040, while the sum is 48.

The square root of 99216885 is about 9960.7672897222. The cubic root of 99216885 is about 462.9440740900.

The spelling of 99216885 in words is "ninety-nine million, two hundred sixteen thousand, eight hundred eighty-five".