6686041 has 2 divisors, whose sum is σ = 6686042. Its totient is φ = 6686040.

The previous prime is 6685969. The next prime is 6686047. The reversal of 6686041 is 1406866.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6270016 + 416025 = 2504^2 + 645^2 .

It is a cyclic number.

It is not a de Polignac number, because 6686041 - 2⁹ = 6685529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6685994 and 6686012.

It is not a weakly prime, because it can be changed into another prime (6686047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3343020 + 3343021.

It is an arithmetic number, because the mean of its divisors is an integer number (3343021).

Almost surely, 2^6686041 is an apocalyptic number.

It is an amenable number.

6686041 is a deficient number, since it is larger than the sum of its proper divisors (1).

6686041 is an equidigital number, since it uses as much as digits as its factorization.

6686041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 6686041 is about 2585.7379991020. The cubic root of 6686041 is about 188.3893489019.

The spelling of 6686041 in words is "six million, six hundred eighty-six thousand, forty-one".