43489 has 4 divisors (see below), whose sum is σ = 43924. Its totient is φ = 43056.

The previous prime is 43487. The next prime is 43499. The reversal of 43489 is 98434.

43489 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 a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10000 + 33489 = 100^2 + 183^2 .

It is a cyclic number.

It is not a de Polignac number, because 43489 - 2¹ = 43487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43481) 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, 19 + ... + 295.

It is an arithmetic number, because the mean of its divisors is an integer number (10981).

2⁴³⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

43489 is a deficient number, since it is larger than the sum of its proper divisors (435).

43489 is a wasteful number, since it uses less digits than its factorization.

43489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434.

The product of its digits is 3456, while the sum is 28.

The square root of 43489 is about 208.5401639973. The cubic root of 43489 is about 35.1662835724.

Subtracting 43489 from its reverse (98434), we obtain a palindrome (54945).

The spelling of 43489 in words is "forty-three thousand, four hundred eighty-nine".