504366821 has 8 divisors (see below), whose sum is σ = 585023040. Its totient is φ = 425861568.

The previous prime is 504366781. The next prime is 504366833. The reversal of 504366821 is 128663405.

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-504366821 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504366851) 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, 537236 + ... + 538173.

It is an arithmetic number, because the mean of its divisors is an integer number (73127880).

Almost surely, 2^504366821 is an apocalyptic number.

It is an amenable number.

504366821 is a deficient number, since it is larger than the sum of its proper divisors (80656219).

504366821 is a wasteful number, since it uses less digits than its factorization.

504366821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075483.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 504366821 is about 22458.1125876597. The cubic root of 504366821 is about 796.0044637722.

The spelling of 504366821 in words is "five hundred four million, three hundred sixty-six thousand, eight hundred twenty-one".