99923166 has 64 divisors (see below), whose sum is σ = 267148800. Its totient is φ = 27044928.

The previous prime is 99923143. The next prime is 99923171. The reversal of 99923166 is 66132999.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

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 31 ways as a sum of consecutive naturals, for example, 226 + ... + 14138.

It is an arithmetic number, because the mean of its divisors is an integer number (4174200).

Almost surely, 2^99923166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99923166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133574400).

99923166 is an abundant number, since it is smaller than the sum of its proper divisors (167225634).

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

99923166 is a wasteful number, since it uses less digits than its factorization.

99923166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13950 (or 13944 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 99923166 is about 9996.1575617834. The cubic root of 99923166 is about 464.0399756234.

The spelling of 99923166 in words is "ninety-nine million, nine hundred twenty-three thousand, one hundred sixty-six".