6799979 has 2 divisors, whose sum is σ = 6799980. Its totient is φ = 6799978.

The previous prime is 6799937. The next prime is 6799993. The reversal of 6799979 is 9799976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6799979 - 2¹² = 6795883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6799999) 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, 3399989 + 3399990.

It is an arithmetic number, because the mean of its divisors is an integer number (3399990).

Almost surely, 2^6799979 is an apocalyptic number.

6799979 is a deficient number, since it is larger than the sum of its proper divisors (1).

6799979 is an equidigital number, since it uses as much as digits as its factorization.

6799979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1928934, while the sum is 56.

The square root of 6799979 is about 2607.6769355118. The cubic root of 6799979 is about 189.4534524112.

The spelling of 6799979 in words is "six million, seven hundred ninety-nine thousand, nine hundred seventy-nine".