47771 has 8 divisors (see below), whose sum is σ = 52224. Its totient is φ = 43560.

The previous prime is 47743. The next prime is 47777. The reversal of 47771 is 17774.

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

It is a cyclic number.

It is not a de Polignac number, because 47771 - 2¹⁰ = 46747 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 47771.

It is not an unprimeable number, because it can be changed into a prime (47777) 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, 680 + ... + 746.

It is an arithmetic number, because the mean of its divisors is an integer number (6528).

2⁴⁷⁷⁷¹ is an apocalyptic number.

47771 is a deficient number, since it is larger than the sum of its proper divisors (4453).

47771 is a wasteful number, since it uses less digits than its factorization.

47771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121.

The product of its digits is 1372, while the sum is 26.

The square root of 47771 is about 218.5657795722. The cubic root of 47771 is about 36.2845251729.

It can be divided in two parts, 47 and 771, that added together give a palindrome (818).

The spelling of 47771 in words is "forty-seven thousand, seven hundred seventy-one", and thus it is an iban number.