679907 has 2 divisors, whose sum is σ = 679908. Its totient is φ = 679906.

The previous prime is 679897. The next prime is 679909. The reversal of 679907 is 709976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679907 - 2⁴ = 679891 is a prime.

Together with 679909, 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 (679909) 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, 339953 + 339954.

It is an arithmetic number, because the mean of its divisors is an integer number (339954).

2⁶⁷⁹⁹⁰⁷ is an apocalyptic number.

679907 is a deficient number, since it is larger than the sum of its proper divisors (1).

679907 is an equidigital number, since it uses as much as digits as its factorization.

679907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 679907 is about 824.5647336626. The cubic root of 679907 is about 87.9325843863.

The spelling of 679907 in words is "six hundred seventy-nine thousand, nine hundred seven".