504928866 has 64 divisors (see below), whose sum is σ = 1163006208. Its totient is φ = 144764928.

The previous prime is 504928859. The next prime is 504928873. The reversal of 504928866 is 668829405.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (504928859) and next prime (504928873).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 134730 + ... + 138426.

It is an arithmetic number, because the mean of its divisors is an integer number (18171972).

Almost surely, 2^504928866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 504928866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (581503104).

504928866 is an abundant number, since it is smaller than the sum of its proper divisors (658077342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

504928866 is a wasteful number, since it uses less digits than its factorization.

504928866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3835.

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 504928866 is about 22470.6222877783. The cubic root of 504928866 is about 796.3000318844.

The spelling of 504928866 in words is "five hundred four million, nine hundred twenty-eight thousand, eight hundred sixty-six".