64309323 has 16 divisors (see below), whose sum is σ = 93013760. Its totient is φ = 39286944.

The previous prime is 64309309. The next prime is 64309363. The reversal of 64309323 is 32390346.

64309323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64309323 - 2¹³ = 64301131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64309363) 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 15 ways as a sum of consecutive naturals, for example, 511 + ... + 11352.

It is an arithmetic number, because the mean of its divisors is an integer number (5813360).

Almost surely, 2^64309323 is an apocalyptic number.

64309323 is a deficient number, since it is larger than the sum of its proper divisors (28704437).

64309323 is a wasteful number, since it uses less digits than its factorization.

64309323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12018.

The product of its (nonzero) digits is 11664, while the sum is 30.

The square root of 64309323 is about 8019.3093842300. The cubic root of 64309323 is about 400.6433874931.

Adding to 64309323 its reverse (32390346), we get a palindrome (96699669).

It can be divided in two parts, 6430 and 9323, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 64309323 in words is "sixty-four million, three hundred nine thousand, three hundred twenty-three".