86660111 has 2 divisors, whose sum is σ = 86660112. Its totient is φ = 86660110.

The previous prime is 86660107. The next prime is 86660129. The reversal of 86660111 is 11106668.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86660111 - 2² = 86660107 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 (86660131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43330055 + 43330056.

It is an arithmetic number, because the mean of its divisors is an integer number (43330056).

Almost surely, 2^86660111 is an apocalyptic number.

86660111 is a deficient number, since it is larger than the sum of its proper divisors (1).

86660111 is an equidigital number, since it uses as much as digits as its factorization.

86660111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 86660111 is about 9309.1412600733. The cubic root of 86660111 is about 442.5269729374.

Adding to 86660111 its reverse (11106668), we get a palindrome (97766779).

The spelling of 86660111 in words is "eighty-six million, six hundred sixty thousand, one hundred eleven".