6349391 has 2 divisors, whose sum is σ = 6349392. Its totient is φ = 6349390.

The previous prime is 6349379. The next prime is 6349393. The reversal of 6349391 is 1939436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6349391 - 2¹⁸ = 6087247 is a prime.

Together with 6349393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6349393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3174695 + 3174696.

It is an arithmetic number, because the mean of its divisors is an integer number (3174696).

Almost surely, 2^6349391 is an apocalyptic number.

6349391 is a deficient number, since it is larger than the sum of its proper divisors (1).

6349391 is an equidigital number, since it uses as much as digits as its factorization.

6349391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 35.

The square root of 6349391 is about 2519.7997936344. The cubic root of 6349391 is about 185.1728698245.

The spelling of 6349391 in words is "six million, three hundred forty-nine thousand, three hundred ninety-one".