99633975 has 48 divisors (see below), whose sum is σ = 190225920. Its totient is φ = 45072000.

The previous prime is 99633971. The next prime is 99633997. The reversal of 99633975 is 57933699.

It is not a de Polignac number, because 99633975 - 2² = 99633971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99633971) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52086 + ... + 53964.

It is an arithmetic number, because the mean of its divisors is an integer number (3963040).

Almost surely, 2^99633975 is an apocalyptic number.

99633975 is a deficient number, since it is larger than the sum of its proper divisors (90591945).

99633975 is a wasteful number, since it uses less digits than its factorization.

99633975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000 (or 1995 counting only the distinct ones).

The product of its digits is 1377810, while the sum is 51.

The square root of 99633975 is about 9981.6819724934. The cubic root of 99633975 is about 463.5918784867.

The spelling of 99633975 in words is "ninety-nine million, six hundred thirty-three thousand, nine hundred seventy-five".