860855207 has 2 divisors, whose sum is σ = 860855208. Its totient is φ = 860855206.

The previous prime is 860855189. The next prime is 860855221. The reversal of 860855207 is 702558068.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 860855207 - 2⁶ = 860855143 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 (860855257) 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, 430427603 + 430427604.

It is an arithmetic number, because the mean of its divisors is an integer number (430427604).

Almost surely, 2^860855207 is an apocalyptic number.

860855207 is a deficient number, since it is larger than the sum of its proper divisors (1).

860855207 is an equidigital number, since it uses as much as digits as its factorization.

860855207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 860855207 is about 29340.3341323851. The cubic root of 860855207 is about 951.2836597249.

The spelling of 860855207 in words is "eight hundred sixty million, eight hundred fifty-five thousand, two hundred seven".