6649504 has 12 divisors (see below), whose sum is σ = 13091274. Its totient is φ = 3324736.

The previous prime is 6649483. The next prime is 6649547. The reversal of 6649504 is 4059466.

It can be written as a sum of positive squares in only one way, i.e., 3920400 + 2729104 = 1980^2 + 1652^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6649504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103867 + ... + 103930.

Almost surely, 2^6649504 is an apocalyptic number.

It is an amenable number.

6649504 is a deficient number, since it is larger than the sum of its proper divisors (6441770).

6649504 is a wasteful number, since it uses less digits than its factorization.

6649504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207807 (or 207799 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 6649504 is about 2578.6632195772. The cubic root of 6649504 is about 188.0455601064.

The spelling of 6649504 in words is "six million, six hundred forty-nine thousand, five hundred four".