99699 has 8 divisors (see below), whose sum is σ = 134400. Its totient is φ = 65736.

The previous prime is 99689. The next prime is 99707.

99699 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 99699 - 2⁵ = 99667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99699.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99679) 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, 402 + ... + 600.

It is an arithmetic number, because the mean of its divisors is an integer number (16800).

2⁹⁹⁶⁹⁹ is an apocalyptic number.

99699 is a deficient number, since it is larger than the sum of its proper divisors (34701).

99699 is a wasteful number, since it uses less digits than its factorization.

99699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369.

The product of its digits is 39366, while the sum is 42.

The square root of 99699 is about 315.7514845571. The cubic root of 99699 is about 46.3692709240.

The spelling of 99699 in words is "ninety-nine thousand, six hundred ninety-nine".