8489128 has 8 divisors (see below), whose sum is σ = 15917130. Its totient is φ = 4244560.

The previous prime is 8489123. The next prime is 8489161. The reversal of 8489128 is 8219848.

It can be written as a sum of positive squares in only one way, i.e., 8076964 + 412164 = 2842^2 + 642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (8489123) 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 as a sum of consecutive naturals, namely, 530563 + ... + 530578.

Almost surely, 2^8489128 is an apocalyptic number.

It is an amenable number.

8489128 is a deficient number, since it is larger than the sum of its proper divisors (7428002).

8489128 is a wasteful number, since it uses less digits than its factorization.

8489128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061147 (or 1061143 counting only the distinct ones).

The product of its digits is 36864, while the sum is 40.

The square root of 8489128 is about 2913.6108182117. The cubic root of 8489128 is about 203.9957066891.

The spelling of 8489128 in words is "eight million, four hundred eighty-nine thousand, one hundred twenty-eight".