6684613 has 4 divisors (see below), whose sum is σ = 7198828. Its totient is φ = 6170400.

The previous prime is 6684607. The next prime is 6684631. The reversal of 6684613 is 3164866.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3157729 + 3526884 = 1777^2 + 1878^2 .

It is a cyclic number.

It is not a de Polignac number, because 6684613 - 2⁹ = 6684101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6684673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257088 + ... + 257113.

It is an arithmetic number, because the mean of its divisors is an integer number (1799707).

Almost surely, 2^6684613 is an apocalyptic number.

It is an amenable number.

6684613 is a deficient number, since it is larger than the sum of its proper divisors (514215).

6684613 is a wasteful number, since it uses less digits than its factorization.

6684613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514214.

The product of its digits is 20736, while the sum is 34.

The square root of 6684613 is about 2585.4618542922. The cubic root of 6684613 is about 188.3759359248.

The spelling of 6684613 in words is "six million, six hundred eighty-four thousand, six hundred thirteen".