6649583 has 2 divisors, whose sum is σ = 6649584. Its totient is φ = 6649582.

The previous prime is 6649579. The next prime is 6649589. The reversal of 6649583 is 3859466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6649583 - 2² = 6649579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6649583.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6649589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3324791 + 3324792.

It is an arithmetic number, because the mean of its divisors is an integer number (3324792).

Almost surely, 2^6649583 is an apocalyptic number.

6649583 is a deficient number, since it is larger than the sum of its proper divisors (1).

6649583 is an equidigital number, since it uses as much as digits as its factorization.

6649583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 41.

The square root of 6649583 is about 2578.6785375459. The cubic root of 6649583 is about 188.0463048005.

The spelling of 6649583 in words is "six million, six hundred forty-nine thousand, five hundred eighty-three".