6628271 has 4 divisors (see below), whose sum is σ = 7138152. Its totient is φ = 6118392.

The previous prime is 6628267. The next prime is 6628277. The reversal of 6628271 is 1728266.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6628271 - 2² = 6628267 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6628277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254921 + ... + 254946.

It is an arithmetic number, because the mean of its divisors is an integer number (1784538).

Almost surely, 2^6628271 is an apocalyptic number.

6628271 is a deficient number, since it is larger than the sum of its proper divisors (509881).

6628271 is a wasteful number, since it uses less digits than its factorization.

6628271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509880.

The product of its digits is 8064, while the sum is 32.

The square root of 6628271 is about 2574.5428720454. The cubic root of 6628271 is about 187.8451928409.

The spelling of 6628271 in words is "six million, six hundred twenty-eight thousand, two hundred seventy-one".