860806087 has 2 divisors, whose sum is σ = 860806088. Its totient is φ = 860806086.

The previous prime is 860806069. The next prime is 860806139. The reversal of 860806087 is 780608068.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 860806087 - 2²³ = 852417479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (860806007) 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, 430403043 + 430403044.

It is an arithmetic number, because the mean of its divisors is an integer number (430403044).

Almost surely, 2^860806087 is an apocalyptic number.

860806087 is a deficient number, since it is larger than the sum of its proper divisors (1).

860806087 is an equidigital number, since it uses as much as digits as its factorization.

860806087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 860806087 is about 29339.4970474955. The cubic root of 860806087 is about 951.2655661122.

The spelling of 860806087 in words is "eight hundred sixty million, eight hundred six thousand, eighty-seven".