86708771 has 2 divisors, whose sum is σ = 86708772. Its totient is φ = 86708770.

The previous prime is 86708759. The next prime is 86708777. The reversal of 86708771 is 17780768.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86708771 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86708777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43354385 + 43354386.

It is an arithmetic number, because the mean of its divisors is an integer number (43354386).

Almost surely, 2^86708771 is an apocalyptic number.

86708771 is a deficient number, since it is larger than the sum of its proper divisors (1).

86708771 is an equidigital number, since it uses as much as digits as its factorization.

86708771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131712, while the sum is 44.

The square root of 86708771 is about 9311.7544533777. The cubic root of 86708771 is about 442.6097843299.

The spelling of 86708771 in words is "eighty-six million, seven hundred eight thousand, seven hundred seventy-one".