6647241 has 12 divisors (see below), whose sum is σ = 9109232. Its totient is φ = 4309368.

The previous prime is 6647239. The next prime is 6647243. The reversal of 6647241 is 1427466.

It is an interprime number because it is at equal distance from previous prime (6647239) and next prime (6647243).

It is not a de Polignac number, because 6647241 - 2¹ = 6647239 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6647199 and 6647208.

It is not an unprimeable number, because it can be changed into a prime (6647243) 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 11 ways as a sum of consecutive naturals, for example, 29170 + ... + 29396.

Almost surely, 2^6647241 is an apocalyptic number.

It is an amenable number.

6647241 is a deficient number, since it is larger than the sum of its proper divisors (2461991).

6647241 is an equidigital number, since it uses as much as digits as its factorization.

6647241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 273 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 6647241 is about 2578.2243889933. The cubic root of 6647241 is about 188.0242254130.

The spelling of 6647241 in words is "six million, six hundred forty-seven thousand, two hundred forty-one".