86686211 has 2 divisors, whose sum is σ = 86686212. Its totient is φ = 86686210.

The previous prime is 86686207. The next prime is 86686219. The reversal of 86686211 is 11268668.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86686211 - 2² = 86686207 is a prime.

It is not a weakly prime, because it can be changed into another prime (86686219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43343105 + 43343106.

It is an arithmetic number, because the mean of its divisors is an integer number (43343106).

Almost surely, 2^86686211 is an apocalyptic number.

86686211 is a deficient number, since it is larger than the sum of its proper divisors (1).

86686211 is an equidigital number, since it uses as much as digits as its factorization.

86686211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 38.

The square root of 86686211 is about 9310.5430024247. The cubic root of 86686211 is about 442.5713947386.

The spelling of 86686211 in words is "eighty-six million, six hundred eighty-six thousand, two hundred eleven".