504400917 has 8 divisors (see below), whose sum is σ = 672819840. Its totient is φ = 336124640.

The previous prime is 504400843. The next prime is 504400921. The reversal of 504400917 is 719004405.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 504400917 - 2²⁰ = 503352341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504400957) 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 7 ways as a sum of consecutive naturals, for example, 27117 + ... + 41762.

It is an arithmetic number, because the mean of its divisors is an integer number (84102480).

Almost surely, 2^504400917 is an apocalyptic number.

It is an amenable number.

504400917 is a deficient number, since it is larger than the sum of its proper divisors (168418923).

504400917 is a wasteful number, since it uses less digits than its factorization.

504400917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71323.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 504400917 is about 22458.8716769120. The cubic root of 504400917 is about 796.0224004243.

The spelling of 504400917 in words is "five hundred four million, four hundred thousand, nine hundred seventeen".