643314003 has 8 divisors (see below), whose sum is σ = 858054288. Its totient is φ = 428724864.

The previous prime is 643313987. The next prime is 643314011. The reversal of 643314003 is 300413346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 643314003 - 2⁴ = 643313987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (643314083) 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 7 ways as a sum of consecutive naturals, for example, 27450 + ... + 45167.

It is an arithmetic number, because the mean of its divisors is an integer number (107256786).

Almost surely, 2^643314003 is an apocalyptic number.

643314003 is a deficient number, since it is larger than the sum of its proper divisors (214740285).

643314003 is a wasteful number, since it uses less digits than its factorization.

643314003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75573.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 643314003 is about 25363.6354452590. The cubic root of 643314003 is about 863.2587749184.

Adding to 643314003 its reverse (300413346), we get a palindrome (943727349).

The spelling of 643314003 in words is "six hundred forty-three million, three hundred fourteen thousand, three".