679123 has 2 divisors, whose sum is σ = 679124. Its totient is φ = 679122.

The previous prime is 679111. The next prime is 679127. The reversal of 679123 is 321976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679123 - 2⁹ = 678611 is a prime.

It is a super-2 number, since 2×679123² = 922416098258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 679091 and 679100.

It is not a weakly prime, because it can be changed into another prime (679127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339561 + 339562.

It is an arithmetic number, because the mean of its divisors is an integer number (339562).

2⁶⁷⁹¹²³ is an apocalyptic number.

679123 is a deficient number, since it is larger than the sum of its proper divisors (1).

679123 is an equidigital number, since it uses as much as digits as its factorization.

679123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 28.

The square root of 679123 is about 824.0891942017. The cubic root of 679123 is about 87.8987730655.

The spelling of 679123 in words is "six hundred seventy-nine thousand, one hundred twenty-three".