499943663 has 16 divisors (see below), whose sum is σ = 528111360. Its totient is φ = 472353024.

The previous prime is 499943659. The next prime is 499943669. The reversal of 499943663 is 366349994.

It is a happy number.

It is not a de Polignac number, because 499943663 - 2² = 499943659 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 (499943669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1128320 + ... + 1128762.

It is an arithmetic number, because the mean of its divisors is an integer number (33006960).

Almost surely, 2^499943663 is an apocalyptic number.

499943663 is a deficient number, since it is larger than the sum of its proper divisors (28167697).

499943663 is a wasteful number, since it uses less digits than its factorization.

499943663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958.

The product of its digits is 3779136, while the sum is 53.

The square root of 499943663 is about 22359.4200058946. The cubic root of 499943663 is about 793.6707150601.

The spelling of 499943663 in words is "four hundred ninety-nine million, nine hundred forty-three thousand, six hundred sixty-three".