47790 divided by its sum of digits (27) gives a triangular number (1770 = T59).
47790 is nontrivially palindromic in base 4.
It is an Ulam number.
It is a Curzon number.
It is a congruent number.
247790 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 47790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65340).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47790 is a wasteful number, since it uses less digits than its factorization.
47790 is an evil number, because the sum of its binary digits is even.
The square root of 47790 is about 218.6092404268. The cubic root of 47790 is about 36.2893350269.
The spelling of 47790 in words is "forty-seven thousand, seven hundred ninety".