7264321 has 8 divisors (see below), whose sum is σ = 7900200. Its totient is φ = 6651648.

The previous prime is 7264319. The next prime is 7264351. The reversal of 7264321 is 1234627.

7264321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5574321 + 1690000 = 2361^2 + 1300^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7264321 - 2¹ = 7264319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7264351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5146 + ... + 6403.

It is an arithmetic number, because the mean of its divisors is an integer number (987525).

Almost surely, 2^7264321 is an apocalyptic number.

It is an amenable number.

7264321 is a deficient number, since it is larger than the sum of its proper divisors (635879).

7264321 is a wasteful number, since it uses less digits than its factorization.

7264321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11603.

The product of its digits is 2016, while the sum is 25.

The square root of 7264321 is about 2695.2404345438. The cubic root of 7264321 is about 193.6711845924.

Adding to 7264321 its reverse (1234627), we get a palindrome (8498948).

The spelling of 7264321 in words is "seven million, two hundred sixty-four thousand, three hundred twenty-one".