99874191 has 8 divisors (see below), whose sum is σ = 133222320. Its totient is φ = 66554432.

The previous prime is 99874189. The next prime is 99874199. The reversal of 99874191 is 19147899.

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

It is a cyclic number.

It is not a de Polignac number, because 99874191 - 2¹ = 99874189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99874191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99874199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3301 + ... + 14513.

It is an arithmetic number, because the mean of its divisors is an integer number (16652790).

Almost surely, 2^99874191 is an apocalyptic number.

99874191 is a deficient number, since it is larger than the sum of its proper divisors (33348129).

99874191 is a wasteful number, since it uses less digits than its factorization.

99874191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14185.

The product of its digits is 163296, while the sum is 48.

The square root of 99874191 is about 9993.7075702664. The cubic root of 99874191 is about 463.9641504581.

The spelling of 99874191 in words is "ninety-nine million, eight hundred seventy-four thousand, one hundred ninety-one".