6503966 has 32 divisors (see below), whose sum is σ = 12000000. Its totient is φ = 2635416.

The previous prime is 6503957. The next prime is 6503969. The reversal of 6503966 is 6693056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6503969) 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 15 ways as a sum of consecutive naturals, for example, 12785 + ... + 13283.

It is an arithmetic number, because the mean of its divisors is an integer number (375000).

Almost surely, 2^6503966 is an apocalyptic number.

6503966 is a deficient number, since it is larger than the sum of its proper divisors (5496034).

6503966 is a wasteful number, since it uses less digits than its factorization.

6503966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 6503966 is about 2550.2874347806. The cubic root of 6503966 is about 186.6635068910.

The spelling of 6503966 in words is "six million, five hundred three thousand, nine hundred sixty-six".