6684001 has 2 divisors, whose sum is σ = 6684002. Its totient is φ = 6684000.

The previous prime is 6683993. The next prime is 6684019. The reversal of 6684001 is 1004866.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6507601 + 176400 = 2551^2 + 420^2 .

It is a cyclic number.

It is not a de Polignac number, because 6684001 - 2³ = 6683993 is a prime.

It is not a weakly prime, because it can be changed into another prime (6684061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3342000 + 3342001.

It is an arithmetic number, because the mean of its divisors is an integer number (3342001).

Almost surely, 2^6684001 is an apocalyptic number.

It is an amenable number.

6684001 is a deficient number, since it is larger than the sum of its proper divisors (1).

6684001 is an equidigital number, since it uses as much as digits as its factorization.

6684001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 6684001 is about 2585.3434974873. The cubic root of 6684001 is about 188.3701869213.

Adding to 6684001 its reverse (1004866), we get a palindrome (7688867).

The spelling of 6684001 in words is "six million, six hundred eighty-four thousand, one".