8461321 has 8 divisors (see below), whose sum is σ = 9273600. Its totient is φ = 7656240.

The previous prime is 8461279. The next prime is 8461333. The reversal of 8461321 is 1231648.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8461321 is a prime.

It is a Duffinian number.

8461321 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8461361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840 + ... + 4198.

It is an arithmetic number, because the mean of its divisors is an integer number (1159200).

Almost surely, 2^8461321 is an apocalyptic number.

It is an amenable number.

8461321 is a deficient number, since it is larger than the sum of its proper divisors (812279).

8461321 is a wasteful number, since it uses less digits than its factorization.

8461321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3599.

The product of its digits is 1152, while the sum is 25.

The square root of 8461321 is about 2908.8349901636. The cubic root of 8461321 is about 203.7727268362.

Adding to 8461321 its reverse (1231648), we get a palindrome (9692969).

The spelling of 8461321 in words is "eight million, four hundred sixty-one thousand, three hundred twenty-one".