679319 has 2 divisors, whose sum is σ = 679320. Its totient is φ = 679318.

The previous prime is 679309. The next prime is 679333. The reversal of 679319 is 913976.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-679319 is a prime.

It is a super-2 number, since 2×679319² = 922948607522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339659 + 339660.

It is an arithmetic number, because the mean of its divisors is an integer number (339660).

2⁶⁷⁹³¹⁹ is an apocalyptic number.

679319 is a deficient number, since it is larger than the sum of its proper divisors (1).

679319 is an equidigital number, since it uses as much as digits as its factorization.

679319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206, while the sum is 35.

The square root of 679319 is about 824.2081047891. The cubic root of 679319 is about 87.9072283342.

The spelling of 679319 in words is "six hundred seventy-nine thousand, three hundred nineteen".