8464321 has 4 divisors (see below), whose sum is σ = 8477572. Its totient is φ = 8451072.

The previous prime is 8464307. The next prime is 8464331. The reversal of 8464321 is 1234648.

8464321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5574321 + 2890000 = 2361^2 + 1700^2 .

It is a cyclic number.

It is not a de Polignac number, because 8464321 - 2⁷ = 8464193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8464321.

It is not an unprimeable number, because it can be changed into a prime (8464331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5616 + ... + 6961.

It is an arithmetic number, because the mean of its divisors is an integer number (2119393).

Almost surely, 2^8464321 is an apocalyptic number.

It is an amenable number.

8464321 is a deficient number, since it is larger than the sum of its proper divisors (13251).

8464321 is a wasteful number, since it uses less digits than its factorization.

8464321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13250.

The product of its digits is 4608, while the sum is 28.

The square root of 8464321 is about 2909.3506148280. The cubic root of 8464321 is about 203.7968068408.

Adding to 8464321 its reverse (1234648), we get a palindrome (9698969).

The spelling of 8464321 in words is "eight million, four hundred sixty-four thousand, three hundred twenty-one".