86106857 has 2 divisors, whose sum is σ = 86106858. Its totient is φ = 86106856.

The previous prime is 86106851. The next prime is 86106893. The reversal of 86106857 is 75860168.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83247376 + 2859481 = 9124^2 + 1691^2 .

It is a cyclic number.

It is not a de Polignac number, because 86106857 - 2¹² = 86102761 is a prime.

It is not a weakly prime, because it can be changed into another prime (86106851) 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, 43053428 + 43053429.

It is an arithmetic number, because the mean of its divisors is an integer number (43053429).

Almost surely, 2^86106857 is an apocalyptic number.

It is an amenable number.

86106857 is a deficient number, since it is larger than the sum of its proper divisors (1).

86106857 is an equidigital number, since it uses as much as digits as its factorization.

86106857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 86106857 is about 9279.3780502790. The cubic root of 86106857 is about 441.5832373723.

The spelling of 86106857 in words is "eighty-six million, one hundred six thousand, eight hundred fifty-seven".