679804207 has 2 divisors, whose sum is σ = 679804208. Its totient is φ = 679804206.

The previous prime is 679804199. The next prime is 679804247. The reversal of 679804207 is 702408976.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 679804207 - 2³ = 679804199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679804247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339902103 + 339902104.

It is an arithmetic number, because the mean of its divisors is an integer number (339902104).

Almost surely, 2^679804207 is an apocalyptic number.

679804207 is a deficient number, since it is larger than the sum of its proper divisors (1).

679804207 is an equidigital number, since it uses as much as digits as its factorization.

679804207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 679804207 is about 26073.0551911355. The cubic root of 679804207 is about 879.2815274602.

The spelling of 679804207 in words is "six hundred seventy-nine million, eight hundred four thousand, two hundred seven".