8508889 has 3 divisors (see below), whose sum is σ = 8511807. Its totient is φ = 8505972.

The previous prime is 8508881. The next prime is 8508893. The reversal of 8508889 is 9888058.

It is a happy number.

The square root of 8508889 is 2917.

It is a perfect power (a square), and thus also a powerful number.

8508889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9888058 = 2 ⋅4944029.

It can be written as a sum of positive squares in only one way, i.e., 8497225 + 11664 = 2915^2 + 108^2 .

It is not a de Polignac number, because 8508889 - 2³ = 8508881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8508881) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1459 + ... + 4375.

It is an arithmetic number, because the mean of its divisors is an integer number (2837269).

Almost surely, 2^8508889 is an apocalyptic number.

8508889 is the 2917-th square number.

8508889 is the 1459-th centered octagonal number.

It is an amenable number.

8508889 is a deficient number, since it is larger than the sum of its proper divisors (2918).

8508889 is an frugal number, since it uses more digits than its factorization.

8508889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5834 (or 2917 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 46.

The cubic root of 8508889 is about 204.1538711589.

The spelling of 8508889 in words is "eight million, five hundred eight thousand, eight hundred eighty-nine".