8368861 has 2 divisors, whose sum is σ = 8368862. Its totient is φ = 8368860.

The previous prime is 8368847. The next prime is 8368891. The reversal of 8368861 is 1688638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6943225 + 1425636 = 2635^2 + 1194^2 .

It is a cyclic number.

It is not a de Polignac number, because 8368861 - 2¹⁵ = 8336093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8368831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4184430 + 4184431.

It is an arithmetic number, because the mean of its divisors is an integer number (4184431).

Almost surely, 2^8368861 is an apocalyptic number.

It is an amenable number.

8368861 is a deficient number, since it is larger than the sum of its proper divisors (1).

8368861 is an equidigital number, since it uses as much as digits as its factorization.

8368861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 40.

The square root of 8368861 is about 2892.8983736039. The cubic root of 8368861 is about 203.0277733037.

It can be divided in two parts, 8368 and 861, that added together give a palindrome (9229).

The spelling of 8368861 in words is "eight million, three hundred sixty-eight thousand, eight hundred sixty-one".