8887989 has 8 divisors (see below), whose sum is σ = 12928032. Its totient is φ = 5386640.

The previous prime is 8887981. The next prime is 8888003. The reversal of 8887989 is 9897888.

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 8887989 - 2³ = 8887981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8887981) 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, 134634 + ... + 134699.

It is an arithmetic number, because the mean of its divisors is an integer number (1616004).

Almost surely, 2^8887989 is an apocalyptic number.

It is an amenable number.

8887989 is a deficient number, since it is larger than the sum of its proper divisors (4040043).

8887989 is a wasteful number, since it uses less digits than its factorization.

8887989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269347.

The product of its digits is 2322432, while the sum is 57.

The square root of 8887989 is about 2981.2730502254. The cubic root of 8887989 is about 207.1418430843.

The spelling of 8887989 in words is "eight million, eight hundred eighty-seven thousand, nine hundred eighty-nine".