8368643 has 2 divisors, whose sum is σ = 8368644. Its totient is φ = 8368642.

The previous prime is 8368637. The next prime is 8368669. The reversal of 8368643 is 3468638.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8368643 - 2⁶ = 8368579 is a prime.

It is a super-2 number, since 2×8368643² = 140068371322898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8368597 and 8368606.

It is not a weakly prime, because it can be changed into another prime (8368603) 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, 4184321 + 4184322.

It is an arithmetic number, because the mean of its divisors is an integer number (4184322).

Almost surely, 2^8368643 is an apocalyptic number.

8368643 is a deficient number, since it is larger than the sum of its proper divisors (1).

8368643 is an equidigital number, since it uses as much as digits as its factorization.

8368643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 38.

The square root of 8368643 is about 2892.8606948832. The cubic root of 8368643 is about 203.0260104020.

The spelling of 8368643 in words is "eight million, three hundred sixty-eight thousand, six hundred forty-three".