8625321 has 6 divisors (see below), whose sum is σ = 12458810. Its totient is φ = 5750208.

The previous prime is 8625317. The next prime is 8625343. The reversal of 8625321 is 1235268.

8625321 is a `hidden beast` number, since 8 + 625 + 32 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8555625 + 69696 = 2925^2 + 264^2 .

It is not a de Polignac number, because 8625321 - 2² = 8625317 is a prime.

It is an Ulam number.

It is a Duffinian number.

8625321 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8625301) 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, 479176 + ... + 479193.

Almost surely, 2^8625321 is an apocalyptic number.

It is an amenable number.

8625321 is a deficient number, since it is larger than the sum of its proper divisors (3833489).

8625321 is a wasteful number, since it uses less digits than its factorization.

8625321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958375 (or 958372 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 8625321 is about 2936.8896812785. The cubic root of 8625321 is about 205.0808406133.

The spelling of 8625321 in words is "eight million, six hundred twenty-five thousand, three hundred twenty-one".