6628847 has 2 divisors, whose sum is σ = 6628848. Its totient is φ = 6628846.

The previous prime is 6628819. The next prime is 6628859. The reversal of 6628847 is 7488266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6628847 - 2²⁰ = 5580271 is a prime.

It is a super-2 number, since 2×6628847² = 87883225098818, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6628877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314423 + 3314424.

It is an arithmetic number, because the mean of its divisors is an integer number (3314424).

Almost surely, 2^6628847 is an apocalyptic number.

6628847 is a deficient number, since it is larger than the sum of its proper divisors (1).

6628847 is an equidigital number, since it uses as much as digits as its factorization.

6628847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 41.

The square root of 6628847 is about 2574.6547341343. The cubic root of 6628847 is about 187.8506339631.

The spelling of 6628847 in words is "six million, six hundred twenty-eight thousand, eight hundred forty-seven".