8678989 has 4 divisors (see below), whose sum is σ = 9468000. Its totient is φ = 7889980.

The previous prime is 8678963. The next prime is 8679037. The reversal of 8678989 is 9898768.

8678989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8678989 - 2¹⁵ = 8646221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8678939) 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 in 3 ways as a sum of consecutive naturals, for example, 394489 + ... + 394510.

It is an arithmetic number, because the mean of its divisors is an integer number (2367000).

Almost surely, 2^8678989 is an apocalyptic number.

It is an amenable number.

8678989 is a deficient number, since it is larger than the sum of its proper divisors (789011).

8678989 is a wasteful number, since it uses less digits than its factorization.

8678989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789010.

The product of its digits is 1741824, while the sum is 55.

The square root of 8678989 is about 2946.0123896549. The cubic root of 8678989 is about 205.5053090508.

The spelling of 8678989 in words is "eight million, six hundred seventy-eight thousand, nine hundred eighty-nine".