99223866 has 80 divisors (see below), whose sum is σ = 269096256. Its totient is φ = 26676864.

The previous prime is 99223847. The next prime is 99223879. The reversal of 99223866 is 66832299.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16705 + ... + 21851.

Almost surely, 2^99223866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99223866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134548128).

99223866 is an abundant number, since it is smaller than the sum of its proper divisors (169872390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99223866 is a wasteful number, since it uses less digits than its factorization.

99223866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5185 (or 5176 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 99223866 is about 9961.1177083699. The cubic root of 99223866 is about 462.9549315725.

The spelling of 99223866 in words is "ninety-nine million, two hundred twenty-three thousand, eight hundred sixty-six".