8868109 has 2 divisors, whose sum is σ = 8868110. Its totient is φ = 8868108.

The previous prime is 8868107. The next prime is 8868137. The reversal of 8868109 is 9018688.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8282884 + 585225 = 2878^2 + 765^2 .

It is a cyclic number.

It is not a de Polignac number, because 8868109 - 2¹ = 8868107 is a prime.

Together with 8868107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8868107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4434054 + 4434055.

It is an arithmetic number, because the mean of its divisors is an integer number (4434055).

Almost surely, 2^8868109 is an apocalyptic number.

It is an amenable number.

8868109 is a deficient number, since it is larger than the sum of its proper divisors (1).

8868109 is an equidigital number, since it uses as much as digits as its factorization.

8868109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 8868109 is about 2977.9370376151. The cubic root of 8868109 is about 206.9872879153.

The spelling of 8868109 in words is "eight million, eight hundred sixty-eight thousand, one hundred nine".