641621103 has 8 divisors (see below), whose sum is σ = 875390208. Its totient is φ = 417799704.

The previous prime is 641621083. The next prime is 641621161. The reversal of 641621103 is 301126146.

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

It is not a de Polignac number, because 641621103 - 2⁹ = 641620591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641621003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2486775 + ... + 2487032.

It is an arithmetic number, because the mean of its divisors is an integer number (109423776).

Almost surely, 2^641621103 is an apocalyptic number.

641621103 is a deficient number, since it is larger than the sum of its proper divisors (233769105).

641621103 is a wasteful number, since it uses less digits than its factorization.

641621103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4973853.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 641621103 is about 25330.2408792337. The cubic root of 641621103 is about 862.5008793102.

Adding to 641621103 its reverse (301126146), we get a palindrome (942747249).

The spelling of 641621103 in words is "six hundred forty-one million, six hundred twenty-one thousand, one hundred three".