504794909 has 8 divisors (see below), whose sum is σ = 524151000. Its totient is φ = 485568832.

The previous prime is 504794903. The next prime is 504794929. The reversal of 504794909 is 909497405.

It can be written as a sum of positive squares in 4 ways, for example, as 58951684 + 445843225 = 7678^2 + 21115^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504794909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504794903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24554 + ... + 40155.

It is an arithmetic number, because the mean of its divisors is an integer number (65518875).

Almost surely, 2^504794909 is an apocalyptic number.

It is an amenable number.

504794909 is a deficient number, since it is larger than the sum of its proper divisors (19356091).

504794909 is a wasteful number, since it uses less digits than its factorization.

504794909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65007.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 504794909 is about 22467.6413759878. The cubic root of 504794909 is about 796.2296065201.

The spelling of 504794909 in words is "five hundred four million, seven hundred ninety-four thousand, nine hundred nine".