99975436 has 24 divisors (see below), whose sum is σ = 202090896. Its totient is φ = 42769920.

The previous prime is 99975427. The next prime is 99975451. The reversal of 99975436 is 63457999.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66081 + ... + 67576.

It is an arithmetic number, because the mean of its divisors is an integer number (8420454).

Almost surely, 2^99975436 is an apocalyptic number.

It is an amenable number.

99975436 is an abundant number, since it is smaller than the sum of its proper divisors (102115460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99975436 is a wasteful number, since it uses less digits than its factorization.

99975436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133689 (or 133687 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 52.

The square root of 99975436 is about 9998.7717245670. The cubic root of 99975436 is about 464.1208749196.

The spelling of 99975436 in words is "ninety-nine million, nine hundred seventy-five thousand, four hundred thirty-six".