8943689 has 2 divisors, whose sum is σ = 8943690. Its totient is φ = 8943688.

The previous prime is 8943679. The next prime is 8943707. The reversal of 8943689 is 9863498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5721664 + 3222025 = 2392^2 + 1795^2 .

It is a cyclic number.

It is not a de Polignac number, because 8943689 - 2⁴ = 8943673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8943679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4471844 + 4471845.

It is an arithmetic number, because the mean of its divisors is an integer number (4471845).

Almost surely, 2^8943689 is an apocalyptic number.

It is an amenable number.

8943689 is a deficient number, since it is larger than the sum of its proper divisors (1).

8943689 is an equidigital number, since it uses as much as digits as its factorization.

8943689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 47.

The square root of 8943689 is about 2990.6001070019. The cubic root of 8943689 is about 207.5736536324.

The spelling of 8943689 in words is "eight million, nine hundred forty-three thousand, six hundred eighty-nine".