6379409 has 2 divisors, whose sum is σ = 6379410. Its totient is φ = 6379408.

The previous prime is 6379379. The next prime is 6379411. The reversal of 6379409 is 9049736.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6235009 + 144400 = 2497^2 + 380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6379409 is a prime.

Together with 6379411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6379469) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3189704 + 3189705.

It is an arithmetic number, because the mean of its divisors is an integer number (3189705).

Almost surely, 2^6379409 is an apocalyptic number.

It is an amenable number.

6379409 is a deficient number, since it is larger than the sum of its proper divisors (1).

6379409 is an equidigital number, since it uses as much as digits as its factorization.

6379409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 6379409 is about 2525.7491957833. The cubic root of 6379409 is about 185.4642249311.

The spelling of 6379409 in words is "six million, three hundred seventy-nine thousand, four hundred nine".