99693312 has 72 divisors (see below), whose sum is σ = 266864640. Its totient is φ = 33039360.

The previous prime is 99693289. The next prime is 99693313. The reversal of 99693312 is 21339699.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (99693313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207889 + ... + 208367.

Almost surely, 2^99693312 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 99693312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133432320).

99693312 is an abundant number, since it is smaller than the sum of its proper divisors (167171328).

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

99693312 is a wasteful number, since it uses less digits than its factorization.

99693312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769 (or 755 counting only the distinct ones).

The product of its digits is 78732, while the sum is 42.

The square root of 99693312 is about 9984.6538247453. The cubic root of 99693312 is about 463.6838909162.

The spelling of 99693312 in words is "ninety-nine million, six hundred ninety-three thousand, three hundred twelve".