99187087 has 8 divisors (see below), whose sum is σ = 104530160. Its totient is φ = 93856320.

The previous prime is 99187079. The next prime is 99187097. The reversal of 99187087 is 78078199.

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 99187087 - 2³ = 99187079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99187087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99187007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16843 + ... + 21955.

It is an arithmetic number, because the mean of its divisors is an integer number (13066270).

Almost surely, 2^99187087 is an apocalyptic number.

99187087 is a deficient number, since it is larger than the sum of its proper divisors (5343073).

99187087 is a wasteful number, since it uses less digits than its factorization.

99187087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6153.

The product of its (nonzero) digits is 254016, while the sum is 49.

The square root of 99187087 is about 9959.2714090941. The cubic root of 99187087 is about 462.8977238182.

The spelling of 99187087 in words is "ninety-nine million, one hundred eighty-seven thousand, eighty-seven".