8660725 has 6 divisors (see below), whose sum is σ = 10739330. Its totient is φ = 6928560.

The previous prime is 8660723. The next prime is 8660741. The reversal of 8660725 is 5270668.

8660725 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 239121 + 8421604 = 489^2 + 2902^2 .

It is not a de Polignac number, because 8660725 - 2¹ = 8660723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8660723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173190 + ... + 173239.

Almost surely, 2^8660725 is an apocalyptic number.

It is an amenable number.

8660725 is a deficient number, since it is larger than the sum of its proper divisors (2078605).

8660725 is a wasteful number, since it uses less digits than its factorization.

8660725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346439 (or 346434 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 8660725 is about 2942.9109738489. The cubic root of 8660725 is about 205.3610531977.

The spelling of 8660725 in words is "eight million, six hundred sixty thousand, seven hundred twenty-five".