641727223 has 16 divisors (see below), whose sum is σ = 695311840. Its totient is φ = 590198400.

The previous prime is 641727197. The next prime is 641727241. The reversal of 641727223 is 322727146.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641727223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641727263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463993 + ... + 465373.

It is an arithmetic number, because the mean of its divisors is an integer number (43456990).

Almost surely, 2^641727223 is an apocalyptic number.

641727223 is a deficient number, since it is larger than the sum of its proper divisors (53584617).

641727223 is a wasteful number, since it uses less digits than its factorization.

641727223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098.

The product of its digits is 28224, while the sum is 34.

The square root of 641727223 is about 25332.3355220161. The cubic root of 641727223 is about 862.5484273866.

The spelling of 641727223 in words is "six hundred forty-one million, seven hundred twenty-seven thousand, two hundred twenty-three".