8628321 has 8 divisors (see below), whose sum is σ = 12389440. Its totient is φ = 5309712.

The previous prime is 8628293. The next prime is 8628349. The reversal of 8628321 is 1238268.

It is an interprime number because it is at equal distance from previous prime (8628293) and next prime (8628349).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8628321 - 2⁹ = 8627809 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8628121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110581 + ... + 110658.

It is an arithmetic number, because the mean of its divisors is an integer number (1548680).

Almost surely, 2^8628321 is an apocalyptic number.

It is an amenable number.

8628321 is a deficient number, since it is larger than the sum of its proper divisors (3761119).

8628321 is a wasteful number, since it uses less digits than its factorization.

8628321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221255.

The product of its digits is 4608, while the sum is 30.

The square root of 8628321 is about 2937.4003812896. The cubic root of 8628321 is about 205.1046144611.

The spelling of 8628321 in words is "eight million, six hundred twenty-eight thousand, three hundred twenty-one".