641679203 has 8 divisors (see below), whose sum is σ = 714908160. Its totient is φ = 570932680.

The previous prime is 641679179. The next prime is 641679211. The reversal of 641679203 is 302976146.

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

It is a cyclic number.

It is not a de Polignac number, because 641679203 - 2¹⁰ = 641678179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641679223) 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 in 7 ways as a sum of consecutive naturals, for example, 620063 + ... + 621096.

It is an arithmetic number, because the mean of its divisors is an integer number (89363520).

Almost surely, 2^641679203 is an apocalyptic number.

641679203 is a deficient number, since it is larger than the sum of its proper divisors (73228957).

641679203 is a wasteful number, since it uses less digits than its factorization.

641679203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241217.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 641679203 is about 25331.3877037955. The cubic root of 641679203 is about 862.5269122177.

The spelling of 641679203 in words is "six hundred forty-one million, six hundred seventy-nine thousand, two hundred three".