6563941 has 4 divisors (see below), whose sum is σ = 6653932. Its totient is φ = 6473952.

The previous prime is 6563939. The next prime is 6563957. The reversal of 6563941 is 1493656.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4730625 + 1833316 = 2175^2 + 1354^2 .

It is a cyclic number.

It is not a de Polignac number, because 6563941 - 2¹ = 6563939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6563897 and 6563906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6563981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44886 + ... + 45031.

It is an arithmetic number, because the mean of its divisors is an integer number (1663483).

Almost surely, 2^6563941 is an apocalyptic number.

It is an amenable number.

6563941 is a deficient number, since it is larger than the sum of its proper divisors (89991).

6563941 is an equidigital number, since it uses as much as digits as its factorization.

6563941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89990.

The product of its digits is 19440, while the sum is 34.

The square root of 6563941 is about 2562.0189304531. The cubic root of 6563941 is about 187.2355121253.

The spelling of 6563941 in words is "six million, five hundred sixty-three thousand, nine hundred forty-one".