499985793 has 24 divisors (see below), whose sum is σ = 772132608. Its totient is φ = 310660992.

The previous prime is 499985771. The next prime is 499985797. The reversal of 499985793 is 397589994.

It is a happy number.

499985793 is a `hidden beast` number, since 499 + 9 + 8 + 57 + 93 = 666.

It is not a de Polignac number, because 499985793 - 2⁸ = 499985537 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 499985793.

It is not an unprimeable number, because it can be changed into a prime (499985797) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105 + ... + 31622.

It is an arithmetic number, because the mean of its divisors is an integer number (32172192).

Almost surely, 2^499985793 is an apocalyptic number.

It is an amenable number.

499985793 is a deficient number, since it is larger than the sum of its proper divisors (272146815).

499985793 is a wasteful number, since it uses less digits than its factorization.

499985793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31853 (or 31850 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 63.

The square root of 499985793 is about 22360.3620945637. The cubic root of 499985793 is about 793.6930085107.

The spelling of 499985793 in words is "four hundred ninety-nine million, nine hundred eighty-five thousand, seven hundred ninety-three".