6684541 has 2 divisors, whose sum is σ = 6684542. Its totient is φ = 6684540.

The previous prime is 6684527. The next prime is 6684551. The reversal of 6684541 is 1454866.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4968441 + 1716100 = 2229^2 + 1310^2 .

It is a cyclic number.

It is not a de Polignac number, because 6684541 - 2¹⁵ = 6651773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6684497 and 6684506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6684551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3342270 + 3342271.

It is an arithmetic number, because the mean of its divisors is an integer number (3342271).

Almost surely, 2^6684541 is an apocalyptic number.

It is an amenable number.

6684541 is a deficient number, since it is larger than the sum of its proper divisors (1).

6684541 is an equidigital number, since it uses as much as digits as its factorization.

6684541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 34.

The square root of 6684541 is about 2585.4479302434. The cubic root of 6684541 is about 188.3752595897.

It can be divided in two parts, 6684 and 541, that added together give a square (7225 = 85²).

The spelling of 6684541 in words is "six million, six hundred eighty-four thousand, five hundred forty-one".