6641105 has 8 divisors (see below), whose sum is σ = 8052072. Its totient is φ = 5257728.

The previous prime is 6641083. The next prime is 6641143. The reversal of 6641105 is 5011466.

It can be written as a sum of positive squares in 4 ways, for example, as 2572816 + 4068289 = 1604^2 + 2017^2 .

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 6641105 - 2⁸ = 6640849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6362 + ... + 7331.

It is an arithmetic number, because the mean of its divisors is an integer number (1006509).

Almost surely, 2^6641105 is an apocalyptic number.

It is an amenable number.

6641105 is a deficient number, since it is larger than the sum of its proper divisors (1410967).

6641105 is a wasteful number, since it uses less digits than its factorization.

6641105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13795.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 6641105 is about 2577.0341480081. The cubic root of 6641105 is about 187.9663531908.

The spelling of 6641105 in words is "six million, six hundred forty-one thousand, one hundred five".