6681071 has 2 divisors, whose sum is σ = 6681072. Its totient is φ = 6681070.

The previous prime is 6681067. The next prime is 6681133. The reversal of 6681071 is 1701866.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6681071 - 2² = 6681067 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6681001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3340535 + 3340536.

It is an arithmetic number, because the mean of its divisors is an integer number (3340536).

Almost surely, 2^6681071 is an apocalyptic number.

6681071 is a deficient number, since it is larger than the sum of its proper divisors (1).

6681071 is an equidigital number, since it uses as much as digits as its factorization.

6681071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 6681071 is about 2584.7767795305. The cubic root of 6681071 is about 188.3426582343.

The spelling of 6681071 in words is "six million, six hundred eighty-one thousand, seventy-one".