47887 has 4 divisors (see below), whose sum is σ = 54736. Its totient is φ = 41040.

The previous prime is 47881. The next prime is 47903. The reversal of 47887 is 78874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3414 + ... + 3427.

It is an arithmetic number, because the mean of its divisors is an integer number (13684).

2⁴⁷⁸⁸⁷ is an apocalyptic number.

47887 is a deficient number, since it is larger than the sum of its proper divisors (6849).

47887 is an equidigital number, since it uses as much as digits as its factorization.

47887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6848.

The product of its digits is 12544, while the sum is 34.

The square root of 47887 is about 218.8309850090. The cubic root of 47887 is about 36.3138707499.

It can be divided in two parts, 478 and 87, that added together give a palindrome (565).

The spelling of 47887 in words is "forty-seven thousand, eight hundred eighty-seven".