86662111 has 2 divisors, whose sum is σ = 86662112. Its totient is φ = 86662110.

The previous prime is 86662099. The next prime is 86662127. The reversal of 86662111 is 11126668.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86662111 - 2¹⁹ = 86137823 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86662711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43331055 + 43331056.

It is an arithmetic number, because the mean of its divisors is an integer number (43331056).

Almost surely, 2^86662111 is an apocalyptic number.

86662111 is a deficient number, since it is larger than the sum of its proper divisors (1).

86662111 is an equidigital number, since it uses as much as digits as its factorization.

86662111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 31.

The square root of 86662111 is about 9309.2486807475. The cubic root of 86662111 is about 442.5303772224.

Adding to 86662111 its reverse (11126668), we get a palindrome (97788779).

The spelling of 86662111 in words is "eighty-six million, six hundred sixty-two thousand, one hundred eleven".