64326443 has 2 divisors, whose sum is σ = 64326444. Its totient is φ = 64326442.

The previous prime is 64326439. The next prime is 64326467. The reversal of 64326443 is 34462346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64326443 - 2² = 64326439 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64326433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32163221 + 32163222.

It is an arithmetic number, because the mean of its divisors is an integer number (32163222).

Almost surely, 2^64326443 is an apocalyptic number.

64326443 is a deficient number, since it is larger than the sum of its proper divisors (1).

64326443 is an equidigital number, since it uses as much as digits as its factorization.

64326443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 32.

The square root of 64326443 is about 8020.3767367874. The cubic root of 64326443 is about 400.6789365443.

Adding to 64326443 its reverse (34462346), we get a palindrome (98788789).

The spelling of 64326443 in words is "sixty-four million, three hundred twenty-six thousand, four hundred forty-three".