99107688 has 32 divisors (see below), whose sum is σ = 262344960. Its totient is φ = 31092480.

The previous prime is 99107639. The next prime is 99107699. The reversal of 99107688 is 88670199.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121048 + ... + 121863.

It is an arithmetic number, because the mean of its divisors is an integer number (8198280).

Almost surely, 2^99107688 is an apocalyptic number.

It is an amenable number.

99107688 is an abundant number, since it is smaller than the sum of its proper divisors (163237272).

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

99107688 is a wasteful number, since it uses less digits than its factorization.

99107688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242937 (or 242933 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 99107688 is about 9955.2844258715. The cubic root of 99107688 is about 462.7741747121.

The spelling of 99107688 in words is "ninety-nine million, one hundred seven thousand, six hundred eighty-eight".