64443341 has 2 divisors, whose sum is σ = 64443342. Its totient is φ = 64443340.

The previous prime is 64443331. The next prime is 64443343. The reversal of 64443341 is 14334446.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63266116 + 1177225 = 7954^2 + 1085^2 .

It is a cyclic number.

It is not a de Polignac number, because 64443341 - 2¹⁸ = 64181197 is a prime.

Together with 64443343, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64443343) 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 as a sum of consecutive naturals, namely, 32221670 + 32221671.

It is an arithmetic number, because the mean of its divisors is an integer number (32221671).

Almost surely, 2^64443341 is an apocalyptic number.

It is an amenable number.

64443341 is a deficient number, since it is larger than the sum of its proper divisors (1).

64443341 is an equidigital number, since it uses as much as digits as its factorization.

64443341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 29.

The square root of 64443341 is about 8027.6609918456. The cubic root of 64443341 is about 400.9215025358.

Adding to 64443341 its reverse (14334446), we get a palindrome (78777787).

The spelling of 64443341 in words is "sixty-four million, four hundred forty-three thousand, three hundred forty-one".