8689889 has 8 divisors (see below), whose sum is σ = 9660672. Its totient is φ = 7762320.

The previous prime is 8689853. The next prime is 8689943. The reversal of 8689889 is 9889868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8689889 - 2¹⁶ = 8624353 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8689489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10379 + ... + 11184.

It is an arithmetic number, because the mean of its divisors is an integer number (1207584).

Almost surely, 2^8689889 is an apocalyptic number.

It is an amenable number.

8689889 is a deficient number, since it is larger than the sum of its proper divisors (970783).

8689889 is a wasteful number, since it uses less digits than its factorization.

8689889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21607.

The product of its digits is 1990656, while the sum is 56.

The square root of 8689889 is about 2947.8617674511. The cubic root of 8689889 is about 205.5913048880.

The spelling of 8689889 in words is "eight million, six hundred eighty-nine thousand, eight hundred eighty-nine".