47816 has 16 divisors (see below), whose sum is σ = 92400. Its totient is φ = 23184.

The previous prime is 47809. The next prime is 47819. The reversal of 47816 is 61874.

47816 = T₂₄ + T₂₅ + ... + T₆₆.

47816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between even and odd.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 47816.

It is not an unprimeable number, because it can be changed into a prime (47819) by changing a digit.

47816 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275 + ... + 413.

It is an arithmetic number, because the mean of its divisors is an integer number (5775).

2⁴⁷⁸¹⁶ is an apocalyptic number.

It is an amenable number.

47816 is a deficient number, since it is larger than the sum of its proper divisors (44584).

47816 is a wasteful number, since it uses less digits than its factorization.

47816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 184 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 47816 is about 218.6686991775. The cubic root of 47816 is about 36.2959148669.

It can be divided in two parts, 478 and 16, that added together give a palindrome (494).

The spelling of 47816 in words is "forty-seven thousand, eight hundred sixteen".