99799 has 8 divisors (see below), whose sum is σ = 116640. Its totient is φ = 83616.

The previous prime is 99793. The next prime is 99809.

99799 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 99799 - 2⁵ = 99767 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99793) 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, 237 + ... + 505.

It is an arithmetic number, because the mean of its divisors is an integer number (14580).

2⁹⁹⁷⁹⁹ is an apocalyptic number.

99799 is a deficient number, since it is larger than the sum of its proper divisors (16841).

99799 is a wasteful number, since it uses less digits than its factorization.

99799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329.

The product of its digits is 45927, while the sum is 43.

The square root of 99799 is about 315.9097972523. The cubic root of 99799 is about 46.3847688316.

It can be divided in two parts, 99 and 799, that added together give a palindrome (898).

The spelling of 99799 in words is "ninety-nine thousand, seven hundred ninety-nine".