86111771 has 2 divisors, whose sum is σ = 86111772. Its totient is φ = 86111770.

The previous prime is 86111741. The next prime is 86111789. The reversal of 86111771 is 17711168.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86111771 - 2¹⁰ = 86110747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86111731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43055885 + 43055886.

It is an arithmetic number, because the mean of its divisors is an integer number (43055886).

Almost surely, 2^86111771 is an apocalyptic number.

86111771 is a deficient number, since it is larger than the sum of its proper divisors (1).

86111771 is an equidigital number, since it uses as much as digits as its factorization.

86111771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 32.

The square root of 86111771 is about 9279.6428271782. The cubic root of 86111771 is about 441.5916373954.

The spelling of 86111771 in words is "eighty-six million, one hundred eleven thousand, seven hundred seventy-one".