679309343 has 2 divisors, whose sum is σ = 679309344. Its totient is φ = 679309342.

The previous prime is 679309289. The next prime is 679309349. The reversal of 679309343 is 343903976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679309343 - 2¹⁰ = 679308319 is a prime.

It is a super-2 number, since 2×679309343² = 922922366974183298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 679309294 and 679309303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679309349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339654671 + 339654672.

It is an arithmetic number, because the mean of its divisors is an integer number (339654672).

Almost surely, 2^679309343 is an apocalyptic number.

679309343 is a deficient number, since it is larger than the sum of its proper divisors (1).

679309343 is an equidigital number, since it uses as much as digits as its factorization.

679309343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 44.

The square root of 679309343 is about 26063.5635130732. The cubic root of 679309343 is about 879.0681177778.

The spelling of 679309343 in words is "six hundred seventy-nine million, three hundred nine thousand, three hundred forty-three".