676837979 has 2 divisors, whose sum is σ = 676837980. Its totient is φ = 676837978.

The previous prime is 676837943. The next prime is 676837981. The reversal of 676837979 is 979738676.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 676837979 - 2¹⁶ = 676772443 is a prime.

It is a Sophie Germain prime.

Together with 676837981, 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 (676837919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338418989 + 338418990.

It is an arithmetic number, because the mean of its divisors is an integer number (338418990).

Almost surely, 2^676837979 is an apocalyptic number.

676837979 is a deficient number, since it is larger than the sum of its proper divisors (1).

676837979 is an equidigital number, since it uses as much as digits as its factorization.

676837979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24004512, while the sum is 62.

The square root of 676837979 is about 26016.1099897736. The cubic root of 676837979 is about 878.0007900014. Note that the first 3 decimals are identical.

The spelling of 676837979 in words is "six hundred seventy-six million, eight hundred thirty-seven thousand, nine hundred seventy-nine".