504993793 has 4 divisors (see below), whose sum is σ = 505060308. Its totient is φ = 504927280.

The previous prime is 504993787. The next prime is 504993809. The reversal of 504993793 is 397399405.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42614784 + 462379009 = 6528^2 + 21503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504993793 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504993703) 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 3 ways as a sum of consecutive naturals, for example, 20146 + ... + 37627.

It is an arithmetic number, because the mean of its divisors is an integer number (126265077).

Almost surely, 2^504993793 is an apocalyptic number.

It is an amenable number.

504993793 is a deficient number, since it is larger than the sum of its proper divisors (66515).

504993793 is an equidigital number, since it uses as much as digits as its factorization.

504993793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66514.

The product of its (nonzero) digits is 918540, while the sum is 49.

The square root of 504993793 is about 22472.0669498825. The cubic root of 504993793 is about 796.3341615475.

The spelling of 504993793 in words is "five hundred four million, nine hundred ninety-three thousand, seven hundred ninety-three".