6379691 has 2 divisors, whose sum is σ = 6379692. Its totient is φ = 6379690.

The previous prime is 6379621. The next prime is 6379693. The reversal of 6379691 is 1969736.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6379691 - 2¹⁴ = 6363307 is a prime.

Together with 6379693, 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 (6379693) 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, 3189845 + 3189846.

It is an arithmetic number, because the mean of its divisors is an integer number (3189846).

Almost surely, 2^6379691 is an apocalyptic number.

6379691 is a deficient number, since it is larger than the sum of its proper divisors (1).

6379691 is an equidigital number, since it uses as much as digits as its factorization.

6379691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 41.

The square root of 6379691 is about 2525.8050201866. The cubic root of 6379691 is about 185.4669576890.

The spelling of 6379691 in words is "six million, three hundred seventy-nine thousand, six hundred ninety-one".