8489120825 has 6 divisors (see below), whose sum is σ = 10526509854. Its totient is φ = 6791296640.

The previous prime is 8489120813. The next prime is 8489120831. The reversal of 8489120825 is 5280219848.

8489120825 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 111746041 + 8377374784 = 10571^2 + 91528^2 .

It is not a de Polignac number, because 8489120825 - 2¹² = 8489116729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8489120825.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 169782392 + ... + 169782441.

It is an arithmetic number, because the mean of its divisors is an integer number (1754418309).

Almost surely, 2^8489120825 is an apocalyptic number.

It is an amenable number.

8489120825 is a deficient number, since it is larger than the sum of its proper divisors (2037389029).

8489120825 is a wasteful number, since it uses less digits than its factorization.

8489120825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339564843 (or 339564838 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 47.

The square root of 8489120825 is about 92136.4250717381. The cubic root of 8489120825 is about 2039.9564921677.

The spelling of 8489120825 in words is "eight billion, four hundred eighty-nine million, one hundred twenty thousand, eight hundred twenty-five".