8642111 has 2 divisors, whose sum is σ = 8642112. Its totient is φ = 8642110.

The previous prime is 8642107. The next prime is 8642119. The reversal of 8642111 is 1112468.

8642111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8642111 - 2² = 8642107 is a prime.

It is a Chen 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 (8642119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4321055 + 4321056.

It is an arithmetic number, because the mean of its divisors is an integer number (4321056).

Almost surely, 2^8642111 is an apocalyptic number.

8642111 is a deficient number, since it is larger than the sum of its proper divisors (1).

8642111 is an equidigital number, since it uses as much as digits as its factorization.

8642111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 23.

The square root of 8642111 is about 2939.7467578007. The cubic root of 8642111 is about 205.2138240886.

Adding to 8642111 its reverse (1112468), we get a palindrome (9754579).

The spelling of 8642111 in words is "eight million, six hundred forty-two thousand, one hundred eleven".