99688699 has 8 divisors (see below), whose sum is σ = 109147248. Its totient is φ = 90296160.

The previous prime is 99688691. The next prime is 99688703.

99688699 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99688699 - 2³ = 99688691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99688699.

It is not an unprimeable number, because it can be changed into a prime (99688691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13312 + ... + 19405.

It is an arithmetic number, because the mean of its divisors is an integer number (13643406).

Almost surely, 2^99688699 is an apocalyptic number.

99688699 is a deficient number, since it is larger than the sum of its proper divisors (9458549).

99688699 is a wasteful number, since it uses less digits than its factorization.

99688699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33005.

The product of its digits is 15116544, while the sum is 64.

The square root of 99688699 is about 9984.4228175694. The cubic root of 99688699 is about 463.6767389594.

The spelling of 99688699 in words is "ninety-nine million, six hundred eighty-eight thousand, six hundred ninety-nine".