6613659 has 12 divisors (see below), whose sum is σ = 10288096. Its totient is φ = 4069872.

The previous prime is 6613631. The next prime is 6613753. The reversal of 6613659 is 9563166.

It is not a de Polignac number, because 6613659 - 2¹¹ = 6611611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6613619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28147 + ... + 28380.

Almost surely, 2^6613659 is an apocalyptic number.

6613659 is a deficient number, since it is larger than the sum of its proper divisors (3674437).

6613659 is a wasteful number, since it uses less digits than its factorization.

6613659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56546 (or 56543 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 6613659 is about 2571.7035210148. The cubic root of 6613659 is about 187.7070565962.

The spelling of 6613659 in words is "six million, six hundred thirteen thousand, six hundred fifty-nine".