8481321 has 16 divisors (see below), whose sum is σ = 12971520. Its totient is φ = 5471280.

The previous prime is 8481313. The next prime is 8481331. The reversal of 8481321 is 1231848.

It is not a de Polignac number, because 8481321 - 2³ = 8481313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (8481331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4230 + ... + 5903.

It is an arithmetic number, because the mean of its divisors is an integer number (810720).

Almost surely, 2^8481321 is an apocalyptic number.

It is an amenable number.

8481321 is a deficient number, since it is larger than the sum of its proper divisors (4490199).

8481321 is a wasteful number, since it uses less digits than its factorization.

8481321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10173 (or 10167 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 8481321 is about 2912.2707635108. The cubic root of 8481321 is about 203.9331528383.

The spelling of 8481321 in words is "eight million, four hundred eighty-one thousand, three hundred twenty-one".