641900223 has 24 divisors (see below), whose sum is σ = 959081760. Its totient is φ = 413418240.

The previous prime is 641900221. The next prime is 641900227. The reversal of 641900223 is 322009146.

It is not a de Polignac number, because 641900223 - 2¹ = 641900221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641900221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29563 + ... + 46451.

It is an arithmetic number, because the mean of its divisors is an integer number (39961740).

Almost surely, 2^641900223 is an apocalyptic number.

641900223 is a deficient number, since it is larger than the sum of its proper divisors (317181537).

641900223 is a wasteful number, since it uses less digits than its factorization.

641900223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17039 (or 17036 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 641900223 is about 25335.7499000918. The cubic root of 641900223 is about 862.6259304467.

Adding to 641900223 its reverse (322009146), we get a palindrome (963909369).

The spelling of 641900223 in words is "six hundred forty-one million, nine hundred thousand, two hundred twenty-three".