5439439 has 4 divisors (see below), whose sum is σ = 5759424. Its totient is φ = 5119456.

The previous prime is 5439433. The next prime is 5439461. The reversal of 5439439 is 9349345.

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 5439439 - 2¹¹ = 5437391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5439398 and 5439407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5439433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159967 + ... + 160000.

It is an arithmetic number, because the mean of its divisors is an integer number (1439856).

Almost surely, 2^5439439 is an apocalyptic number.

5439439 is a deficient number, since it is larger than the sum of its proper divisors (319985).

5439439 is a wasteful number, since it uses less digits than its factorization.

5439439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319984.

The product of its digits is 58320, while the sum is 37.

The square root of 5439439 is about 2332.2604914546. The cubic root of 5439439 is about 175.8671410377.

It can be divided in two parts, 54 and 39439, that added together give a palindrome (39493).

The spelling of 5439439 in words is "five million, four hundred thirty-nine thousand, four hundred thirty-nine".