8688943 has 2 divisors, whose sum is σ = 8688944. Its totient is φ = 8688942.

The previous prime is 8688919. The next prime is 8688961. The reversal of 8688943 is 3498868.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8688943 - 2²¹ = 6591791 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8688893 and 8688902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8688143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4344471 + 4344472.

It is an arithmetic number, because the mean of its divisors is an integer number (4344472).

Almost surely, 2^8688943 is an apocalyptic number.

8688943 is a deficient number, since it is larger than the sum of its proper divisors (1).

8688943 is an equidigital number, since it uses as much as digits as its factorization.

8688943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 46.

The square root of 8688943 is about 2947.7013077990. The cubic root of 8688943 is about 205.5838442467.

The spelling of 8688943 in words is "eight million, six hundred eighty-eight thousand, nine hundred forty-three".