4289443 has 4 divisors (see below), whose sum is σ = 4294080. Its totient is φ = 4284808.

The previous prime is 4289387. The next prime is 4289471. The reversal of 4289443 is 3449824.

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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4289443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4289399 and 4289408.

It is not an unprimeable number, because it can be changed into a prime (4289473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403 + ... + 2956.

It is an arithmetic number, because the mean of its divisors is an integer number (1073520).

Almost surely, 2^4289443 is an apocalyptic number.

4289443 is a deficient number, since it is larger than the sum of its proper divisors (4637).

4289443 is a wasteful number, since it uses less digits than its factorization.

4289443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636.

The product of its digits is 27648, while the sum is 34.

The square root of 4289443 is about 2071.0970522890. The cubic root of 4289443 is about 162.4801458978.

The spelling of 4289443 in words is "four million, two hundred eighty-nine thousand, four hundred forty-three".