99173232 has 60 divisors (see below), whose sum is σ = 278476224. Its totient is φ = 32947200.

The previous prime is 99173231. The next prime is 99173233. The reversal of 99173232 is 23237199.

It is an interprime number because it is at equal distance from previous prime (99173231) and next prime (99173233).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99173231) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 49857 + ... + 51807.

Almost surely, 2^99173232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99173232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139238112).

99173232 is an abundant number, since it is smaller than the sum of its proper divisors (179302992).

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

99173232 is a wasteful number, since it uses less digits than its factorization.

99173232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318 (or 2309 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 99173232 is about 9958.5758017901. The cubic root of 99173232 is about 462.8761694445.

The spelling of 99173232 in words is "ninety-nine million, one hundred seventy-three thousand, two hundred thirty-two".