43273 has 4 divisors (see below), whose sum is σ = 43780. Its totient is φ = 42768.

The previous prime is 43271. The next prime is 43283. The reversal of 43273 is 37234.

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: 37234 = 2 ⋅18617.

It can be written as a sum of positive squares in 2 ways, for example, as 29584 + 13689 = 172^2 + 117^2 .

It is a cyclic number.

It is not a de Polignac number, because 43273 - 2¹ = 43271 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 43273.

It is not an unprimeable number, because it can be changed into a prime (43271) 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, 90 + ... + 307.

It is an arithmetic number, because the mean of its divisors is an integer number (10945).

2⁴³²⁷³ is an apocalyptic number.

It is an amenable number.

43273 is a deficient number, since it is larger than the sum of its proper divisors (507).

43273 is a wasteful number, since it uses less digits than its factorization.

43273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506.

The product of its digits is 504, while the sum is 19.

The square root of 43273 is about 208.0216334904. The cubic root of 43273 is about 35.1079659304.

It can be divided in two parts, 432 and 73, that added together give a palindrome (505).

The spelling of 43273 in words is "forty-three thousand, two hundred seventy-three", and thus it is an iban number.