6381679 has 2 divisors, whose sum is σ = 6381680. Its totient is φ = 6381678.

The previous prime is 6381671. The next prime is 6381689. The reversal of 6381679 is 9761836.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6381679 - 2³ = 6381671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6381671) 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, 3190839 + 3190840.

It is an arithmetic number, because the mean of its divisors is an integer number (3190840).

Almost surely, 2^6381679 is an apocalyptic number.

6381679 is a deficient number, since it is larger than the sum of its proper divisors (1).

6381679 is an equidigital number, since it uses as much as digits as its factorization.

6381679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 6381679 is about 2526.1985274321. The cubic root of 6381679 is about 185.4862203785.

The spelling of 6381679 in words is "six million, three hundred eighty-one thousand, six hundred seventy-nine".