8711989 has 8 divisors (see below), whose sum is σ = 10235232. Its totient is φ = 7310640.

The previous prime is 8711987. The next prime is 8712017. The reversal of 8711989 is 9891178.

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 8711989 - 2¹ = 8711987 is a prime.

It is a super-2 number, since 2×8711989² = 151797504672242, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8711987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30319 + ... + 30604.

It is an arithmetic number, because the mean of its divisors is an integer number (1279404).

Almost surely, 2^8711989 is an apocalyptic number.

It is an amenable number.

8711989 is a deficient number, since it is larger than the sum of its proper divisors (1523243).

8711989 is a wasteful number, since it uses less digits than its factorization.

8711989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60947.

The product of its digits is 36288, while the sum is 43.

The square root of 8711989 is about 2951.6078669092. The cubic root of 8711989 is about 205.7654429603.

The spelling of 8711989 in words is "eight million, seven hundred eleven thousand, nine hundred eighty-nine".