679307243 has 2 divisors, whose sum is σ = 679307244. Its totient is φ = 679307242.

The previous prime is 679307221. The next prime is 679307263. The reversal of 679307243 is 342703976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679307243 - 2¹⁸ = 679045099 is a prime.

It is a super-2 number, since 2×679307243² = 922916660784522098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 679307243.

It is not a weakly prime, because it can be changed into another prime (679307263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339653621 + 339653622.

It is an arithmetic number, because the mean of its divisors is an integer number (339653622).

Almost surely, 2^679307243 is an apocalyptic number.

679307243 is a deficient number, since it is larger than the sum of its proper divisors (1).

679307243 is an equidigital number, since it uses as much as digits as its factorization.

679307243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 41.

The square root of 679307243 is about 26063.5232269162. The cubic root of 679307243 is about 879.0672119338.

The spelling of 679307243 in words is "six hundred seventy-nine million, three hundred seven thousand, two hundred forty-three".