99688212 has 192 divisors, whose sum is σ = 303878400. Its totient is φ = 27993600.

The previous prime is 99688201. The next prime is 99688223. The reversal of 99688212 is 21288699.

It is an interprime number because it is at equal distance from previous prime (99688201) and next prime (99688223).

It is a super-2 number, since 2×99688212² = 19875479223513888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 986962 + ... + 987062.

It is an arithmetic number, because the mean of its divisors is an integer number (1582700).

Almost surely, 2^99688212 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 99688212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151939200).

99688212 is an abundant number, since it is smaller than the sum of its proper divisors (204190188).

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

99688212 is a wasteful number, since it uses less digits than its factorization.

99688212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 175 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 99688212 is about 9984.3984295500. The cubic root of 99688212 is about 463.6759839057.

The spelling of 99688212 in words is "ninety-nine million, six hundred eighty-eight thousand, two hundred twelve".