504491999 has 8 divisors (see below), whose sum is σ = 551221200. Its totient is φ = 457907200.

The previous prime is 504491993. The next prime is 504492041. The reversal of 504491999 is 999194405.

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-504491999 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 (504491993) 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, 28724 + ... + 42825.

It is an arithmetic number, because the mean of its divisors is an integer number (68902650).

Almost surely, 2^504491999 is an apocalyptic number.

504491999 is a deficient number, since it is larger than the sum of its proper divisors (46729201).

504491999 is a wasteful number, since it uses less digits than its factorization.

504491999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72201.

The product of its (nonzero) digits is 524880, while the sum is 50.

The square root of 504491999 is about 22460.8993364024. The cubic root of 504491999 is about 796.0703113527.

The spelling of 504491999 in words is "five hundred four million, four hundred ninety-one thousand, nine hundred ninety-nine".