86111611 has 2 divisors, whose sum is σ = 86111612. Its totient is φ = 86111610.

The previous prime is 86111593. The next prime is 86111633. The reversal of 86111611 is 11611168.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86111611 - 2⁷ = 86111483 is a prime.

It is not a weakly prime, because it can be changed into another prime (86111651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43055805 + 43055806.

It is an arithmetic number, because the mean of its divisors is an integer number (43055806).

Almost surely, 2^86111611 is an apocalyptic number.

86111611 is a deficient number, since it is larger than the sum of its proper divisors (1).

86111611 is an equidigital number, since it uses as much as digits as its factorization.

86111611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 25.

The square root of 86111611 is about 9279.6342061527. The cubic root of 86111611 is about 441.5913638954.

Adding to 86111611 its reverse (11611168), we get a palindrome (97722779).

The spelling of 86111611 in words is "eighty-six million, one hundred eleven thousand, six hundred eleven".