8660825217 has 12 divisors (see below), whose sum is σ = 13647361104. Its totient is φ = 5248984920.

The previous prime is 8660825183. The next prime is 8660825231. The reversal of 8660825217 is 7125280668.

8660825217 is a `hidden beast` number, since 8 + 6 + 608 + 25 + 2 + 17 = 666.

It is not a de Polignac number, because 8660825217 - 2¹¹ = 8660823169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8660825297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43741443 + ... + 43741640.

It is an arithmetic number, because the mean of its divisors is an integer number (1137280092).

Almost surely, 2^8660825217 is an apocalyptic number.

It is an amenable number.

8660825217 is a deficient number, since it is larger than the sum of its proper divisors (4986535887).

8660825217 is a wasteful number, since it uses less digits than its factorization.

8660825217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87483100 (or 87483097 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 8660825217 is about 93063.5547193422. The cubic root of 8660825217 is about 2053.6184530184.

The spelling of 8660825217 in words is "eight billion, six hundred sixty million, eight hundred twenty-five thousand, two hundred seventeen".