8785989 has 20 divisors (see below), whose sum is σ = 13552000. Its totient is φ = 5666760.

The previous prime is 8785981. The next prime is 8785993. The reversal of 8785989 is 9895878.

It is not a de Polignac number, because 8785989 - 2³ = 8785981 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 (8785981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 762 + ... + 4260.

It is an arithmetic number, because the mean of its divisors is an integer number (677600).

Almost surely, 2^8785989 is an apocalyptic number.

It is an amenable number.

8785989 is a deficient number, since it is larger than the sum of its proper divisors (4766011).

8785989 is a wasteful number, since it uses less digits than its factorization.

8785989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3542 (or 3533 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 54.

The square root of 8785989 is about 2964.1169005287. The cubic root of 8785989 is about 206.3463946107.

The spelling of 8785989 in words is "eight million, seven hundred eighty-five thousand, nine hundred eighty-nine".