6411439 has 2 divisors, whose sum is σ = 6411440. Its totient is φ = 6411438.

The previous prime is 6411437. The next prime is 6411467. The reversal of 6411439 is 9341146.

It is an a-pointer prime, because the next prime (6411467) can be obtained adding 6411439 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6411439 - 2¹ = 6411437 is a prime.

It is a super-2 number, since 2×6411439² = 82213100101442, which contains 22 as substring.

Together with 6411437, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6411437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3205719 + 3205720.

It is an arithmetic number, because the mean of its divisors is an integer number (3205720).

Almost surely, 2^6411439 is an apocalyptic number.

6411439 is a deficient number, since it is larger than the sum of its proper divisors (1).

6411439 is an equidigital number, since it uses as much as digits as its factorization.

6411439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 6411439 is about 2532.0819497007. The cubic root of 6411439 is about 185.7741023715.

It can be divided in two parts, 641 and 1439, that added together give a triangular number (2080 = T₆₄).

The spelling of 6411439 in words is "six million, four hundred eleven thousand, four hundred thirty-nine".