6563669 has 4 divisors (see below), whose sum is σ = 7501344. Its totient is φ = 5625996.

The previous prime is 6563663. The next prime is 6563677. The reversal of 6563669 is 9663656.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6563669 - 2²⁰ = 5515093 is a prime.

It is a super-2 number, since 2×6563669² = 86163501483122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6563663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468827 + ... + 468840.

It is an arithmetic number, because the mean of its divisors is an integer number (1875336).

Almost surely, 2^6563669 is an apocalyptic number.

It is an amenable number.

6563669 is a deficient number, since it is larger than the sum of its proper divisors (937675).

6563669 is an equidigital number, since it uses as much as digits as its factorization.

6563669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937674.

The product of its digits is 174960, while the sum is 41.

The square root of 6563669 is about 2561.9658467669. The cubic root of 6563669 is about 187.2329258354.

The spelling of 6563669 in words is "six million, five hundred sixty-three thousand, six hundred sixty-nine".