47988187 has 8 divisors (see below), whose sum is σ = 51737504. Its totient is φ = 44247168.

The previous prime is 47988179. The next prime is 47988191. The reversal of 47988187 is 78188974.

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 47988187 - 2³ = 47988179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47988107) 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, 15523 + ... + 18355.

It is an arithmetic number, because the mean of its divisors is an integer number (6467188).

Almost surely, 2^47988187 is an apocalyptic number.

47988187 is a deficient number, since it is larger than the sum of its proper divisors (3749317).

47988187 is a wasteful number, since it uses less digits than its factorization.

47988187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149.

The product of its digits is 903168, while the sum is 52.

The square root of 47988187 is about 6927.3506479750. The cubic root of 47988187 is about 363.3943027237.

The spelling of 47988187 in words is "forty-seven million, nine hundred eighty-eight thousand, one hundred eighty-seven".