8915889 has 4 divisors (see below), whose sum is σ = 11887856. Its totient is φ = 5943924.

The previous prime is 8915869. The next prime is 8915897. The reversal of 8915889 is 9885198.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8915889 - 2⁷ = 8915761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8915839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1485979 + ... + 1485984.

It is an arithmetic number, because the mean of its divisors is an integer number (2971964).

Almost surely, 2^8915889 is an apocalyptic number.

It is an amenable number.

8915889 is a deficient number, since it is larger than the sum of its proper divisors (2971967).

8915889 is a wasteful number, since it uses less digits than its factorization.

8915889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971966.

The product of its digits is 207360, while the sum is 48.

The square root of 8915889 is about 2985.9485929935. The cubic root of 8915889 is about 207.3583607835.

The spelling of 8915889 in words is "eight million, nine hundred fifteen thousand, eight hundred eighty-nine".