47273 has 4 divisors (see below), whose sum is σ = 48468. Its totient is φ = 46080.
The previous prime is 47269. The next prime is 47279. The reversal of 47273 is 37274.
47273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37274 = 2 ⋅18637.
It can be written as a sum of positive squares in 2 ways, for example, as 17689 + 29584 = 133^2 + 172^2 .
It is a cyclic number.
It is not a de Polignac number, because 47273 - 22 = 47269 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47279) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536 + ... + 617.
It is an arithmetic number, because the mean of its divisors is an integer number (12117).
247273 is an apocalyptic number.
It is an amenable number.
47273 is a deficient number, since it is larger than the sum of its proper divisors (1195).
47273 is a wasteful number, since it uses less digits than its factorization.
47273 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1194.
The product of its digits is 1176, while the sum is 23.
The square root of 47273 is about 217.4235497824. The cubic root of 47273 is about 36.1579989658.
Subtracting from 47273 its reverse (37274), we obtain a palindrome (9999).
It can be divided in two parts, 472 and 73, that added together give a palindrome (545).
The spelling of 47273 in words is "forty-seven thousand, two hundred seventy-three", and thus it is an iban number.
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