6628307 has 4 divisors (see below), whose sum is σ = 7575216. Its totient is φ = 5681400.

The previous prime is 6628289. The next prime is 6628309. The reversal of 6628307 is 7038266.

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 6628307 - 2⁸ = 6628051 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (6628309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473444 + ... + 473457.

It is an arithmetic number, because the mean of its divisors is an integer number (1893804).

Almost surely, 2^6628307 is an apocalyptic number.

6628307 is a deficient number, since it is larger than the sum of its proper divisors (946909).

6628307 is an equidigital number, since it uses as much as digits as its factorization.

6628307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946908.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 6628307 is about 2574.5498635684. The cubic root of 6628307 is about 187.8455329203.

The spelling of 6628307 in words is "six million, six hundred twenty-eight thousand, three hundred seven".