868111 has 2 divisors, whose sum is σ = 868112. Its totient is φ = 868110.

The previous prime is 868103. The next prime is 868121. The reversal of 868111 is 111868.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 868111 - 2³ = 868103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434055 + 434056.

It is an arithmetic number, because the mean of its divisors is an integer number (434056).

2⁸⁶⁸¹¹¹ is an apocalyptic number.

868111 is a deficient number, since it is larger than the sum of its proper divisors (1).

868111 is an equidigital number, since it uses as much as digits as its factorization.

868111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 25.

The square root of 868111 is about 931.7247447610. The cubic root of 868111 is about 95.3948844803.

Adding to 868111 its reverse (111868), we get a palindrome (979979).

It can be divided in two parts, 868 and 111, that added together give a palindrome (979).

The spelling of 868111 in words is "eight hundred sixty-eight thousand, one hundred eleven".