47843 has 2 divisors, whose sum is σ = 47844. Its totient is φ = 47842.

The previous prime is 47837. The next prime is 47857. The reversal of 47843 is 34874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47843 - 2⁶ = 47779 is a prime.

It is not a weakly prime, because it can be changed into another prime (47143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23921 + 23922.

It is an arithmetic number, because the mean of its divisors is an integer number (23922).

2⁴⁷⁸⁴³ is an apocalyptic number.

47843 is a deficient number, since it is larger than the sum of its proper divisors (1).

47843 is an equidigital number, since it uses as much as digits as its factorization.

47843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 26.

The square root of 47843 is about 218.7304276958. The cubic root of 47843 is about 36.3027452535.

It can be divided in two parts, 47 and 843, that multiplied together give a triangular number (39621 = T₂₈₁).

The spelling of 47843 in words is "forty-seven thousand, eight hundred forty-three".