8689889869 has 8 divisors (see below), whose sum is σ = 8762705280. Its totient is φ = 8617295856.

The previous prime is 8689889867. The next prime is 8689889921. The reversal of 8689889869 is 9689889868.

It is a happy number.

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 8689889869 - 2¹ = 8689889867 is a prime.

It is a super-2 number, since 2×8689889869² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8689889867) 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, 23952 + ... + 133990.

It is an arithmetic number, because the mean of its divisors is an integer number (1095338160).

Almost surely, 2^8689889869 is an apocalyptic number.

It is an amenable number.

8689889869 is a deficient number, since it is larger than the sum of its proper divisors (72815411).

8689889869 is a wasteful number, since it uses less digits than its factorization.

8689889869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110699.

The product of its digits is 859963392, while the sum is 79.

The square root of 8689889869 is about 93219.5787857894. The cubic root of 8689889869 is about 2055.9131174110.

Subtracting 8689889869 from its reverse (9689889868), we obtain a palindrome (999999999).

The spelling of 8689889869 in words is "eight billion, six hundred eighty-nine million, eight hundred eighty-nine thousand, eight hundred sixty-nine".