8480321 has 2 divisors, whose sum is σ = 8480322. Its totient is φ = 8480320.

The previous prime is 8480293. The next prime is 8480323. The reversal of 8480321 is 1230848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8473921 + 6400 = 2911^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 8480321 - 2¹⁴ = 8463937 is a prime.

It is a super-3 number, since 3×8480321³ (a number of 22 digits) contains 333 as substring.

Together with 8480323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8480323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4240160 + 4240161.

It is an arithmetic number, because the mean of its divisors is an integer number (4240161).

Almost surely, 2^8480321 is an apocalyptic number.

It is an amenable number.

8480321 is a deficient number, since it is larger than the sum of its proper divisors (1).

8480321 is an equidigital number, since it uses as much as digits as its factorization.

8480321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 8480321 is about 2912.0990711169. The cubic root of 8480321 is about 203.9251375315.

The spelling of 8480321 in words is "eight million, four hundred eighty thousand, three hundred twenty-one".