6504663 has 16 divisors (see below), whose sum is σ = 9504000. Its totient is φ = 3924480.

The previous prime is 6504649. The next prime is 6504677. The reversal of 6504663 is 3664056.

6504663 = T₁₀₈₂ + T₁₀₈₃ + ... + T₁₀₉₂.

It is an interprime number because it is at equal distance from previous prime (6504649) and next prime (6504677).

It is not a de Polignac number, because 6504663 - 2⁴ = 6504647 is a prime.

It is a super-4 number, since 4×6504663⁴ (a number of 28 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6504663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6504683) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 14263 + ... + 14711.

It is an arithmetic number, because the mean of its divisors is an integer number (594000).

Almost surely, 2^6504663 is an apocalyptic number.

6504663 is a deficient number, since it is larger than the sum of its proper divisors (2999337).

6504663 is a wasteful number, since it uses less digits than its factorization.

6504663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 6504663 is about 2550.4240823832. The cubic root of 6504663 is about 186.6701746081.

Multiplying 6504663 by its sum of digits (30), we get a triangular number (195139890 = T₁₉₇₅₅).

The spelling of 6504663 in words is "six million, five hundred four thousand, six hundred sixty-three".