99633 has 4 divisors (see below), whose sum is σ = 132848. Its totient is φ = 66420.

The previous prime is 99623. The next prime is 99643. The reversal of 99633 is 33699.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (99623) and next prime (99643).

It is not a de Polignac number, because 99633 - 2⁸ = 99377 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 99633.

It is not an unprimeable number, because it can be changed into a prime (99623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16603 + ... + 16608.

It is an arithmetic number, because the mean of its divisors is an integer number (33212).

2⁹⁹⁶³³ is an apocalyptic number.

It is an amenable number.

99633 is a deficient number, since it is larger than the sum of its proper divisors (33215).

99633 is a wasteful number, since it uses less digits than its factorization.

99633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33214.

The product of its digits is 4374, while the sum is 30.

The square root of 99633 is about 315.6469546820. The cubic root of 99633 is about 46.3590366273.

Subtracting from 99633 its product of digits (4374), we obtain a palindrome (95259).

The spelling of 99633 in words is "ninety-nine thousand, six hundred thirty-three".