6439347 has 12 divisors (see below), whose sum is σ = 9791080. Its totient is φ = 4066848.

The previous prime is 6439331. The next prime is 6439357. The reversal of 6439347 is 7439346.

6439347 is a `hidden beast` number, since 643 + 9 + 3 + 4 + 7 = 666.

It is not a de Polignac number, because 6439347 - 2⁴ = 6439331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6439327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18658 + ... + 18999.

Almost surely, 2^6439347 is an apocalyptic number.

6439347 is a deficient number, since it is larger than the sum of its proper divisors (3351733).

6439347 is a wasteful number, since it uses less digits than its factorization.

6439347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37682 (or 37679 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 6439347 is about 2537.5868458045. The cubic root of 6439347 is about 186.0432608358.

Subtracting 6439347 from its reverse (7439346), we obtain a palindrome (999999).

It can be divided in two parts, 6439 and 347, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 6439347 in words is "six million, four hundred thirty-nine thousand, three hundred forty-seven".