6604613 has 4 divisors (see below), whose sum is σ = 6626028. Its totient is φ = 6583200.

The previous prime is 6604607. The next prime is 6604639. The reversal of 6604613 is 3164066.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3164066 = 2 ⋅1582033.

It can be written as a sum of positive squares in 2 ways, for example, as 543169 + 6061444 = 737^2 + 2462^2 .

It is a cyclic number.

It is not a de Polignac number, because 6604613 - 2⁸ = 6604357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6604603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10238 + ... + 10863.

It is an arithmetic number, because the mean of its divisors is an integer number (1656507).

Almost surely, 2^6604613 is an apocalyptic number.

It is an amenable number.

6604613 is a deficient number, since it is larger than the sum of its proper divisors (21415).

6604613 is a wasteful number, since it uses less digits than its factorization.

6604613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21414.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 6604613 is about 2569.9441628176. The cubic root of 6604613 is about 187.6214371843.

Adding to 6604613 its reverse (3164066), we get a palindrome (9768679).

The spelling of 6604613 in words is "six million, six hundred four thousand, six hundred thirteen".