641344713 has 4 divisors (see below), whose sum is σ = 855126288. Its totient is φ = 427563140.

The previous prime is 641344687. The next prime is 641344733. The reversal of 641344713 is 317443146.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 641344713 - 2²⁴ = 624567497 is a prime.

It is a super-2 number, since 2×641344713² = 822646081786104738, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (641344733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106890783 + ... + 106890788.

It is an arithmetic number, because the mean of its divisors is an integer number (213781572).

Almost surely, 2^641344713 is an apocalyptic number.

It is an amenable number.

641344713 is a deficient number, since it is larger than the sum of its proper divisors (213781575).

641344713 is a wasteful number, since it uses less digits than its factorization.

641344713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213781574.

The product of its digits is 24192, while the sum is 33.

The square root of 641344713 is about 25324.7845597944. The cubic root of 641344713 is about 862.3770155247.

Adding to 641344713 its reverse (317443146), we get a palindrome (958787859).

The spelling of 641344713 in words is "six hundred forty-one million, three hundred forty-four thousand, seven hundred thirteen".