64341643 has 2 divisors, whose sum is σ = 64341644. Its totient is φ = 64341642.

The previous prime is 64341623. The next prime is 64341659. The reversal of 64341643 is 34614346.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64341643 - 2²¹ = 62244491 is a prime.

It is not a weakly prime, because it can be changed into another prime (64341623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32170821 + 32170822.

It is an arithmetic number, because the mean of its divisors is an integer number (32170822).

Almost surely, 2^64341643 is an apocalyptic number.

64341643 is a deficient number, since it is larger than the sum of its proper divisors (1).

64341643 is an equidigital number, since it uses as much as digits as its factorization.

64341643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 31.

The square root of 64341643 is about 8021.3242672267. The cubic root of 64341643 is about 400.7104935003.

Adding to 64341643 its reverse (34614346), we get a palindrome (98955989).

The spelling of 64341643 in words is "sixty-four million, three hundred forty-one thousand, six hundred forty-three".