99975318 has 8 divisors (see below), whose sum is σ = 199950648. Its totient is φ = 33325104.

The previous prime is 99975307. The next prime is 99975329. The reversal of 99975318 is 81357999.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99975307) and next prime (99975329).

It is a sphenic number, since it is the product of 3 distinct primes.

99975318 is an admirable number.

It is a super-2 number, since 2×99975318² = 19990128418402248, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8331271 + ... + 8331282.

It is an arithmetic number, because the mean of its divisors is an integer number (24993831).

Almost surely, 2^99975318 is an apocalyptic number.

99975318 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

99975318 is a wasteful number, since it uses less digits than its factorization.

99975318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16662558.

The product of its digits is 612360, while the sum is 51.

The square root of 99975318 is about 9998.7658238405. The cubic root of 99975318 is about 464.1206923205.

The spelling of 99975318 in words is "ninety-nine million, nine hundred seventy-five thousand, three hundred eighteen".