6684533 has 4 divisors (see below), whose sum is σ = 6702828. Its totient is φ = 6666240.

The previous prime is 6684527. The next prime is 6684541. The reversal of 6684533 is 3354866.

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 1385329 + 5299204 = 1177^2 + 2302^2 .

It is a cyclic number.

It is not a de Polignac number, because 6684533 - 2⁸ = 6684277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6684493 and 6684502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6684583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8588 + ... + 9333.

It is an arithmetic number, because the mean of its divisors is an integer number (1675707).

Almost surely, 2^6684533 is an apocalyptic number.

It is an amenable number.

6684533 is a deficient number, since it is larger than the sum of its proper divisors (18295).

6684533 is a wasteful number, since it uses less digits than its factorization.

6684533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18294.

The product of its digits is 51840, while the sum is 35.

The square root of 6684533 is about 2585.4463831223. The cubic root of 6684533 is about 188.3751844410.

The spelling of 6684533 in words is "six million, six hundred eighty-four thousand, five hundred thirty-three".