99632811 has 4 divisors (see below), whose sum is σ = 132843752. Its totient is φ = 66421872.

The previous prime is 99632779. The next prime is 99632843. The reversal of 99632811 is 11823699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11823699 = 3 ⋅3941233.

It is an interprime number because it is at equal distance from previous prime (99632779) and next prime (99632843).

It is not a de Polignac number, because 99632811 - 2⁵ = 99632779 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 99632811.

It is not an unprimeable number, because it can be changed into a prime (99632851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16605466 + ... + 16605471.

It is an arithmetic number, because the mean of its divisors is an integer number (33210938).

Almost surely, 2^99632811 is an apocalyptic number.

99632811 is a deficient number, since it is larger than the sum of its proper divisors (33210941).

99632811 is a wasteful number, since it uses less digits than its factorization.

99632811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33210940.

The product of its digits is 23328, while the sum is 39.

The square root of 99632811 is about 9981.6236655165. The cubic root of 99632811 is about 463.5900731352.

The spelling of 99632811 in words is "ninety-nine million, six hundred thirty-two thousand, eight hundred eleven".