64345323 has 16 divisors (see below), whose sum is σ = 103818240. Its totient is φ = 34605696.

The previous prime is 64345321. The next prime is 64345349. The reversal of 64345323 is 32354346.

It is not a de Polignac number, because 64345323 - 2¹ = 64345321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64345321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89763 + ... + 90476.

It is an arithmetic number, because the mean of its divisors is an integer number (6488640).

Almost surely, 2^64345323 is an apocalyptic number.

64345323 is a deficient number, since it is larger than the sum of its proper divisors (39472917).

64345323 is a wasteful number, since it uses less digits than its factorization.

64345323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180266.

The product of its digits is 25920, while the sum is 30.

The square root of 64345323 is about 8021.5536525040. The cubic root of 64345323 is about 400.7181328581.

Adding to 64345323 its reverse (32354346), we get a palindrome (96699669).

The spelling of 64345323 in words is "sixty-four million, three hundred forty-five thousand, three hundred twenty-three".