499668696 has 64 divisors (see below), whose sum is σ = 1393920000. Its totient is φ = 165842208.

The previous prime is 499668679. The next prime is 499668731. The reversal of 499668696 is 696866994.

499668696 is a `hidden beast` number, since 499 + 66 + 86 + 9 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46785 + ... + 56463.

It is an arithmetic number, because the mean of its divisors is an integer number (21780000).

Almost surely, 2^499668696 is an apocalyptic number.

499668696 is the 12906-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499668696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696960000).

499668696 is an abundant number, since it is smaller than the sum of its proper divisors (894251304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499668696 is a wasteful number, since it uses less digits than its factorization.

499668696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9933 (or 9923 counting only the distinct ones).

The product of its digits is 30233088, while the sum is 63.

The square root of 499668696 is about 22353.2703647587. The cubic root of 499668696 is about 793.5251831445.

The spelling of 499668696 in words is "four hundred ninety-nine million, six hundred sixty-eight thousand, six hundred ninety-six".