6586661 has 2 divisors, whose sum is σ = 6586662. Its totient is φ = 6586660.

The previous prime is 6586649. The next prime is 6586687. The reversal of 6586661 is 1666856.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6400900 + 185761 = 2530^2 + 431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6586661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6586561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3293330 + 3293331.

It is an arithmetic number, because the mean of its divisors is an integer number (3293331).

Almost surely, 2^6586661 is an apocalyptic number.

It is an amenable number.

6586661 is a deficient number, since it is larger than the sum of its proper divisors (1).

6586661 is an equidigital number, since it uses as much as digits as its factorization.

6586661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 6586661 is about 2566.4491033332. The cubic root of 6586661 is about 187.4512916440.

The spelling of 6586661 in words is "six million, five hundred eighty-six thousand, six hundred sixty-one".