47787 has 8 divisors (see below), whose sum is σ = 67536. Its totient is φ = 29952.

The previous prime is 47779. The next prime is 47791. The reversal of 47787 is 78774.

47787 is nontrivially palindromic in base 16.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47787 - 2³ = 47779 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418 + ... + 519.

It is an arithmetic number, because the mean of its divisors is an integer number (8442).

2⁴⁷⁷⁸⁷ is an apocalyptic number.

47787 is a deficient number, since it is larger than the sum of its proper divisors (19749).

47787 is a wasteful number, since it uses less digits than its factorization.

47787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957.

The product of its digits is 10976, while the sum is 33.

The square root of 47787 is about 218.6023787611. The cubic root of 47787 is about 36.2885756610.

The spelling of 47787 in words is "forty-seven thousand, seven hundred eighty-seven".