6649193 has 8 divisors (see below), whose sum is σ = 7130880. Its totient is φ = 6177600.

The previous prime is 6649189. The next prime is 6649199. The reversal of 6649193 is 3919466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6649193 - 2² = 6649189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6649199) 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 7 ways as a sum of consecutive naturals, for example, 1133 + ... + 3818.

It is an arithmetic number, because the mean of its divisors is an integer number (891360).

Almost surely, 2^6649193 is an apocalyptic number.

It is an amenable number.

6649193 is a deficient number, since it is larger than the sum of its proper divisors (481687).

6649193 is a wasteful number, since it uses less digits than its factorization.

6649193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5047.

The product of its digits is 34992, while the sum is 38.

The square root of 6649193 is about 2578.6029163095. The cubic root of 6649193 is about 188.0426284049.

The spelling of 6649193 in words is "six million, six hundred forty-nine thousand, one hundred ninety-three".