675979 has 2 divisors, whose sum is σ = 675980. Its totient is φ = 675978.

The previous prime is 675977. The next prime is 676007. The reversal of 675979 is 979576.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 675979 - 2¹ = 675977 is a prime.

Together with 675977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (675973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337989 + 337990.

It is an arithmetic number, because the mean of its divisors is an integer number (337990).

2⁶⁷⁵⁹⁷⁹ is an apocalyptic number.

675979 is a deficient number, since it is larger than the sum of its proper divisors (1).

675979 is an equidigital number, since it uses as much as digits as its factorization.

675979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 119070, while the sum is 43.

The square root of 675979 is about 822.1794208079. The cubic root of 675979 is about 87.7629207468.

The spelling of 675979 in words is "six hundred seventy-five thousand, nine hundred seventy-nine".