64224443 has 2 divisors, whose sum is σ = 64224444. Its totient is φ = 64224442.

The previous prime is 64224439. The next prime is 64224463. The reversal of 64224443 is 34442246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64224443 - 2² = 64224439 is a prime.

It is not a weakly prime, because it can be changed into another prime (64224403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32112221 + 32112222.

It is an arithmetic number, because the mean of its divisors is an integer number (32112222).

Almost surely, 2^64224443 is an apocalyptic number.

64224443 is a deficient number, since it is larger than the sum of its proper divisors (1).

64224443 is an equidigital number, since it uses as much as digits as its factorization.

64224443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 29.

The square root of 64224443 is about 8014.0154105168. The cubic root of 64224443 is about 400.4670440457.

Adding to 64224443 its reverse (34442246), we get a palindrome (98666689).

The spelling of 64224443 in words is "sixty-four million, two hundred twenty-four thousand, four hundred forty-three".