8489573489 has 4 divisors (see below), whose sum is σ = 8491688820. Its totient is φ = 8487458160.

The previous prime is 8489573473. The next prime is 8489573507. The reversal of 8489573489 is 9843759848.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5221507600 + 3268065889 = 72260^2 + 57167^2 .

It is a cyclic number.

It is not a de Polignac number, because 8489573489 - 2⁴ = 8489573473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8489573459) 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, 1051634 + ... + 1059675.

It is an arithmetic number, because the mean of its divisors is an integer number (2122922205).

Almost surely, 2^8489573489 is an apocalyptic number.

It is an amenable number.

8489573489 is a deficient number, since it is larger than the sum of its proper divisors (2115331).

8489573489 is a wasteful number, since it uses less digits than its factorization.

8489573489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115330.

The product of its digits is 69672960, while the sum is 65.

The square root of 8489573489 is about 92138.8815267474. The cubic root of 8489573489 is about 2039.9927502786.

The spelling of 8489573489 in words is "eight billion, four hundred eighty-nine million, five hundred seventy-three thousand, four hundred eighty-nine".