47213 has 4 divisors (see below), whose sum is σ = 48768. Its totient is φ = 45660.

The previous prime is 47207. The next prime is 47221. The reversal of 47213 is 31274.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47213 - 2⁶ = 47149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47191 and 47200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47293) 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, 731 + ... + 792.

It is an arithmetic number, because the mean of its divisors is an integer number (12192).

2⁴⁷²¹³ is an apocalyptic number.

It is an amenable number.

47213 is a deficient number, since it is larger than the sum of its proper divisors (1555).

47213 is a wasteful number, since it uses less digits than its factorization.

47213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554.

The product of its digits is 168, while the sum is 17.

The square root of 47213 is about 217.2855264393. The cubic root of 47213 is about 36.1426949626.

Adding to 47213 its reverse (31274), we get a palindrome (78487).

It can be divided in two parts, 47 and 213, that multiplied together give a triangular number (10011 = T₁₄₁).

The spelling of 47213 in words is "forty-seven thousand, two hundred thirteen".