47187 has 18 divisors (see below), whose sum is σ = 80028. Its totient is φ = 26712.

The previous prime is 47161. The next prime is 47189. The reversal of 47187 is 78174.

47187 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47187 - 2⁶ = 47123 is a prime.

It is a super-2 number, since 2×47187² = 4453225938, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 47187.

It is not an unprimeable number, because it can be changed into a prime (47189) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 388 + ... + 494.

It is an arithmetic number, because the mean of its divisors is an integer number (4446).

2⁴⁷¹⁸⁷ is an apocalyptic number.

47187 is a deficient number, since it is larger than the sum of its proper divisors (32841).

47187 is a wasteful number, since it uses less digits than its factorization.

47187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 117 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 47187 is about 217.2256890886. The cubic root of 47187 is about 36.1360592011.

The spelling of 47187 in words is "forty-seven thousand, one hundred eighty-seven".