6565987 has 2 divisors, whose sum is σ = 6565988. Its totient is φ = 6565986.

The previous prime is 6565981. The next prime is 6565991. The reversal of 6565987 is 7895656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6565987 - 2¹¹ = 6563939 is a prime.

It is a super-2 number, since 2×6565987² = 86224370568338, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6565981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3282993 + 3282994.

It is an arithmetic number, because the mean of its divisors is an integer number (3282994).

Almost surely, 2^6565987 is an apocalyptic number.

6565987 is a deficient number, since it is larger than the sum of its proper divisors (1).

6565987 is an equidigital number, since it uses as much as digits as its factorization.

6565987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 46.

The square root of 6565987 is about 2562.4181938161. The cubic root of 6565987 is about 187.2549640604.

The spelling of 6565987 in words is "six million, five hundred sixty-five thousand, nine hundred eighty-seven".