868085111 has 2 divisors, whose sum is σ = 868085112. Its totient is φ = 868085110.

The previous prime is 868085063. The next prime is 868085123. The reversal of 868085111 is 111580868.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868085111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868085611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434042555 + 434042556.

It is an arithmetic number, because the mean of its divisors is an integer number (434042556).

Almost surely, 2^868085111 is an apocalyptic number.

868085111 is a deficient number, since it is larger than the sum of its proper divisors (1).

868085111 is an equidigital number, since it uses as much as digits as its factorization.

868085111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 38.

The square root of 868085111 is about 29463.2841176947. The cubic root of 868085111 is about 953.9393617505.

It can be divided in two parts, 86808 and 5111, that added together give a palindrome (91919).

The spelling of 868085111 in words is "eight hundred sixty-eight million, eighty-five thousand, one hundred eleven".