99632879 has 4 divisors (see below), whose sum is σ = 100000800. Its totient is φ = 99264960.

The previous prime is 99632857. The next prime is 99632881. The reversal of 99632879 is 97823699.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99632879 - 2⁸ = 99632623 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 99632879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99632279) 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, 183554 + ... + 184095.

It is an arithmetic number, because the mean of its divisors is an integer number (25000200).

Almost surely, 2^99632879 is an apocalyptic number.

99632879 is a deficient number, since it is larger than the sum of its proper divisors (367921).

99632879 is a wasteful number, since it uses less digits than its factorization.

99632879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367920.

The product of its digits is 1469664, while the sum is 53.

The square root of 99632879 is about 9981.6270717754. The cubic root of 99632879 is about 463.5901786029.

The spelling of 99632879 in words is "ninety-nine million, six hundred thirty-two thousand, eight hundred seventy-nine".