6668271 has 16 divisors (see below), whose sum is σ = 9918720. Its totient is φ = 4427640.

The previous prime is 6668269. The next prime is 6668273. The reversal of 6668271 is 1728666.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6668269) and next prime (6668273).

It is not a de Polignac number, because 6668271 - 2¹ = 6668269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6668273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13006 + ... + 13508.

It is an arithmetic number, because the mean of its divisors is an integer number (619920).

Almost surely, 2^6668271 is an apocalyptic number.

6668271 is a deficient number, since it is larger than the sum of its proper divisors (3250449).

6668271 is a wasteful number, since it uses less digits than its factorization.

6668271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003 (or 997 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 6668271 is about 2582.2995565968. The cubic root of 6668271 is about 188.2223019200. Note that the first 3 decimals are identical.

The spelling of 6668271 in words is "six million, six hundred sixty-eight thousand, two hundred seventy-one".