64310321 has 8 divisors (see below), whose sum is σ = 65202144. Its totient is φ = 63423360.

The previous prime is 64310297. The next prime is 64310333. The reversal of 64310321 is 12301346.

64310321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-64310321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64310293 and 64310302.

It is not an unprimeable number, because it can be changed into a prime (64310341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31106 + ... + 33108.

It is an arithmetic number, because the mean of its divisors is an integer number (8150268).

Almost surely, 2^64310321 is an apocalyptic number.

It is an amenable number.

64310321 is a deficient number, since it is larger than the sum of its proper divisors (891823).

64310321 is a wasteful number, since it uses less digits than its factorization.

64310321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 64310321 is about 8019.3716087983. The cubic root of 64310321 is about 400.6454599766.

Adding to 64310321 its reverse (12301346), we get a palindrome (76611667).

The spelling of 64310321 in words is "sixty-four million, three hundred ten thousand, three hundred twenty-one".