47071 has 4 divisors (see below), whose sum is σ = 47632. Its totient is φ = 46512.

The previous prime is 47059. The next prime is 47087. The reversal of 47071 is 17074.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 17074 = 2 ⋅8537.

It is a cyclic number.

It is not a de Polignac number, because 47071 - 2⁹ = 46559 is a prime.

It is a Duffinian number.

47071 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126 + ... + 331.

It is an arithmetic number, because the mean of its divisors is an integer number (11908).

2⁴⁷⁰⁷¹ is an apocalyptic number.

47071 is a deficient number, since it is larger than the sum of its proper divisors (561).

47071 is a wasteful number, since it uses less digits than its factorization.

47071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560.

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 47071 is about 216.9585213814. The cubic root of 47071 is about 36.1064237615.

The spelling of 47071 in words is "forty-seven thousand, seventy-one", and thus it is an iban number.