6355439 has 4 divisors (see below), whose sum is σ = 6397680. Its totient is φ = 6313200.

The previous prime is 6355381. The next prime is 6355457. The reversal of 6355439 is 9345536.

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 6355439 - 2¹⁶ = 6289903 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6355399 and 6355408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6355039) 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, 20894 + ... + 21195.

It is an arithmetic number, because the mean of its divisors is an integer number (1599420).

Almost surely, 2^6355439 is an apocalyptic number.

6355439 is a deficient number, since it is larger than the sum of its proper divisors (42241).

6355439 is a wasteful number, since it uses less digits than its factorization.

6355439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42240.

The product of its digits is 48600, while the sum is 35.

The square root of 6355439 is about 2520.9996033320. Note that the first 3 decimals coincide. The cubic root of 6355439 is about 185.2316455462.

The spelling of 6355439 in words is "six million, three hundred fifty-five thousand, four hundred thirty-nine".