6565947 has 8 divisors (see below), whose sum is σ = 8941056. Its totient is φ = 4284072.

The previous prime is 6565921. The next prime is 6565957. The reversal of 6565947 is 7495656.

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

It is not a de Polignac number, because 6565947 - 2²⁰ = 5517371 is a prime.

It is a super-2 number, since 2×6565947² = 86223320013618, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 6565899 and 6565908.

It is not an unprimeable number, because it can be changed into a prime (6565907) 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, 23143 + ... + 23424.

It is an arithmetic number, because the mean of its divisors is an integer number (1117632).

Almost surely, 2^6565947 is an apocalyptic number.

6565947 is a deficient number, since it is larger than the sum of its proper divisors (2375109).

6565947 is a wasteful number, since it uses less digits than its factorization.

6565947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46617.

The product of its digits is 226800, while the sum is 42.

The square root of 6565947 is about 2562.4103886770. The cubic root of 6565947 is about 187.2545838071.

The spelling of 6565947 in words is "six million, five hundred sixty-five thousand, nine hundred forty-seven".