99180587 has 8 divisors (see below), whose sum is σ = 108672240. Its totient is φ = 89768160.

The previous prime is 99180583. The next prime is 99180611. The reversal of 99180587 is 78508199.

It is a happy number.

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 99180587 - 2² = 99180583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99180583) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17168 + ... + 22205.

It is an arithmetic number, because the mean of its divisors is an integer number (13584030).

Almost surely, 2^99180587 is an apocalyptic number.

99180587 is a deficient number, since it is larger than the sum of its proper divisors (9491653).

99180587 is a wasteful number, since it uses less digits than its factorization.

99180587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39613.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 99180587 is about 9958.9450746552. The cubic root of 99180587 is about 462.8876119477.

The spelling of 99180587 in words is "ninety-nine million, one hundred eighty thousand, five hundred eighty-seven".