43874 has 4 divisors (see below), whose sum is σ = 65814. Its totient is φ = 21936.

The previous prime is 43867. The next prime is 43889. The reversal of 43874 is 47834.

43874 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: 47834 = 2 ⋅23917.

It can be written as a sum of positive squares in only one way, i.e., 42025 + 1849 = 205^2 + 43^2 .

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 15.

It is an unprimeable number.

43874 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10967 + ... + 10970.

2⁴³⁸⁷⁴ is an apocalyptic number.

43874 is a deficient number, since it is larger than the sum of its proper divisors (21940).

43874 is a wasteful number, since it uses less digits than its factorization.

43874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21939.

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

The square root of 43874 is about 209.4612135934. The cubic root of 43874 is about 35.2697523554.

It can be divided in two parts, 438 and 74, that added together give a 9-th power (512 = 2⁹).

The spelling of 43874 in words is "forty-three thousand, eight hundred seventy-four".