679123607 has 2 divisors, whose sum is σ = 679123608. Its totient is φ = 679123606.

The previous prime is 679123583. The next prime is 679123661. The reversal of 679123607 is 706321976.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 679123607 - 2¹⁰ = 679122583 is a prime.

It is a super-2 number, since 2×679123607² = 922417747169380898, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679123007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339561803 + 339561804.

It is an arithmetic number, because the mean of its divisors is an integer number (339561804).

Almost surely, 2^679123607 is an apocalyptic number.

679123607 is a deficient number, since it is larger than the sum of its proper divisors (1).

679123607 is an equidigital number, since it uses as much as digits as its factorization.

679123607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 679123607 is about 26060.0001343054. Note that the first 3 decimals coincide. The cubic root of 679123607 is about 878.9879925346.

The spelling of 679123607 in words is "six hundred seventy-nine million, one hundred twenty-three thousand, six hundred seven".