679909127 has 2 divisors, whose sum is σ = 679909128. Its totient is φ = 679909126.

The previous prime is 679909123. The next prime is 679909183. The reversal of 679909127 is 721909976.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 679909127 - 2² = 679909123 is a 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 (679909123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339954563 + 339954564.

It is an arithmetic number, because the mean of its divisors is an integer number (339954564).

Almost surely, 2^679909127 is an apocalyptic number.

679909127 is a deficient number, since it is larger than the sum of its proper divisors (1).

679909127 is an equidigital number, since it uses as much as digits as its factorization.

679909127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 428652, while the sum is 50.

The square root of 679909127 is about 26075.0671523584. The cubic root of 679909127 is about 879.3267608137.

The spelling of 679909127 in words is "six hundred seventy-nine million, nine hundred nine thousand, one hundred twenty-seven".