6366671 has 2 divisors, whose sum is σ = 6366672. Its totient is φ = 6366670.

The previous prime is 6366649. The next prime is 6366683. The reversal of 6366671 is 1766636.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6366671 - 2¹⁴ = 6350287 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6366071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3183335 + 3183336.

It is an arithmetic number, because the mean of its divisors is an integer number (3183336).

Almost surely, 2^6366671 is an apocalyptic number.

6366671 is a deficient number, since it is larger than the sum of its proper divisors (1).

6366671 is an equidigital number, since it uses as much as digits as its factorization.

6366671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 35.

The square root of 6366671 is about 2523.2263077259. The cubic root of 6366671 is about 185.3407016060.

Subtracting from 6366671 its sum of digits (35), we obtain a palindrome (6366636).

The spelling of 6366671 in words is "six million, three hundred sixty-six thousand, six hundred seventy-one".