99187198 has 8 divisors (see below), whose sum is σ = 162306360. Its totient is φ = 45085080.

The previous prime is 99187183. The next prime is 99187199. The reversal of 99187198 is 89178199.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99187199) 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 3 ways as a sum of consecutive naturals, for example, 2254233 + ... + 2254276.

It is an arithmetic number, because the mean of its divisors is an integer number (20288295).

Almost surely, 2^99187198 is an apocalyptic number.

99187198 is a deficient number, since it is larger than the sum of its proper divisors (63119162).

99187198 is a wasteful number, since it uses less digits than its factorization.

99187198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4508522.

The product of its digits is 326592, while the sum is 52.

The square root of 99187198 is about 9959.2769817894. The cubic root of 99187198 is about 462.8978964940.

The spelling of 99187198 in words is "ninety-nine million, one hundred eighty-seven thousand, one hundred ninety-eight".