4423439 has 4 divisors (see below), whose sum is σ = 4429224. Its totient is φ = 4417656.

The previous prime is 4423427. The next prime is 4423481. The reversal of 4423439 is 9343244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4423439 - 2⁴ = 4423423 is a prime.

It is a d-powerful number, because it can be written as 4⁶ + 4⁸ + 2¹⁷ + 3⁷ + 4¹¹ + 3⁹ + 9⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4423339) 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, 1532 + ... + 3345.

It is an arithmetic number, because the mean of its divisors is an integer number (1107306).

Almost surely, 2^4423439 is an apocalyptic number.

4423439 is a deficient number, since it is larger than the sum of its proper divisors (5785).

4423439 is an equidigital number, since it uses as much as digits as its factorization.

4423439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5784.

The product of its digits is 10368, while the sum is 29.

The square root of 4423439 is about 2103.1973278796. The cubic root of 4423439 is about 164.1547097490.

The spelling of 4423439 in words is "four million, four hundred twenty-three thousand, four hundred thirty-nine".