6339439 has 4 divisors (see below), whose sum is σ = 6345256. Its totient is φ = 6333624.

The previous prime is 6339391. The next prime is 6339449. The reversal of 6339439 is 9349336.

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 not a de Polignac number, because 6339439 - 2¹⁹ = 5815151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6339398 and 6339407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6339449) 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, 729 + ... + 3634.

It is an arithmetic number, because the mean of its divisors is an integer number (1586314).

Almost surely, 2^6339439 is an apocalyptic number.

6339439 is a deficient number, since it is larger than the sum of its proper divisors (5817).

6339439 is a wasteful number, since it uses less digits than its factorization.

6339439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5816.

The product of its digits is 52488, while the sum is 37.

The square root of 6339439 is about 2517.8242591571. The cubic root of 6339439 is about 185.0760729265.

The spelling of 6339439 in words is "six million, three hundred thirty-nine thousand, four hundred thirty-nine".