676979 has 2 divisors, whose sum is σ = 676980. Its totient is φ = 676978.

The previous prime is 676967. The next prime is 676981. The reversal of 676979 is 979676.

676979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 676979 - 2¹² = 672883 is a prime.

Together with 676981, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 676979.

It is not a weakly prime, because it can be changed into another prime (676909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338489 + 338490.

It is an arithmetic number, because the mean of its divisors is an integer number (338490).

2⁶⁷⁶⁹⁷⁹ is an apocalyptic number.

676979 is a deficient number, since it is larger than the sum of its proper divisors (1).

676979 is an equidigital number, since it uses as much as digits as its factorization.

676979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 44.

The square root of 676979 is about 822.7873358286. The cubic root of 676979 is about 87.8061763703.

The spelling of 676979 in words is "six hundred seventy-six thousand, nine hundred seventy-nine".