8678939 has 2 divisors, whose sum is σ = 8678940. Its totient is φ = 8678938.

The previous prime is 8678933. The next prime is 8678941. The reversal of 8678939 is 9398768.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8678939 is a prime.

Together with 8678941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8678933) 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, 4339469 + 4339470.

It is an arithmetic number, because the mean of its divisors is an integer number (4339470).

Almost surely, 2^8678939 is an apocalyptic number.

8678939 is a deficient number, since it is larger than the sum of its proper divisors (1).

8678939 is an equidigital number, since it uses as much as digits as its factorization.

8678939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 50.

The square root of 8678939 is about 2946.0039035955. The cubic root of 8678939 is about 205.5049144086.

The spelling of 8678939 in words is "eight million, six hundred seventy-eight thousand, nine hundred thirty-nine".