673386979 has 2 divisors, whose sum is σ = 673386980. Its totient is φ = 673386978.

The previous prime is 673386977. The next prime is 673387003. The reversal of 673386979 is 979683376.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 673386979 - 2¹ = 673386977 is a prime.

Together with 673386977, 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 (673386977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336693489 + 336693490.

It is an arithmetic number, because the mean of its divisors is an integer number (336693490).

Almost surely, 2^673386979 is an apocalyptic number.

673386979 is a deficient number, since it is larger than the sum of its proper divisors (1).

673386979 is an equidigital number, since it uses as much as digits as its factorization.

673386979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10287648, while the sum is 58.

The square root of 673386979 is about 25949.7009424001. The cubic root of 673386979 is about 876.5060230997.

The spelling of 673386979 in words is "six hundred seventy-three million, three hundred eighty-six thousand, nine hundred seventy-nine".