99171716 has 48 divisors (see below), whose sum is σ = 210524160. Its totient is φ = 39929760.

The previous prime is 99171713. The next prime is 99171757. The reversal of 99171716 is 61717199.

It is not an unprimeable number, because it can be changed into a prime (99171713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68981 + ... + 70403.

It is an arithmetic number, because the mean of its divisors is an integer number (4385920).

Almost surely, 2^99171716 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 99171716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105262080).

99171716 is an abundant number, since it is smaller than the sum of its proper divisors (111352444).

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

99171716 is a wasteful number, since it uses less digits than its factorization.

99171716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584 (or 1582 counting only the distinct ones).

The product of its digits is 23814, while the sum is 41.

The square root of 99171716 is about 9958.4996861977. The cubic root of 99171716 is about 462.8738108651.

The spelling of 99171716 in words is "ninety-nine million, one hundred seventy-one thousand, seven hundred sixteen".