500665872 has 160 divisors (see below), whose sum is σ = 1549615104. Its totient is φ = 136281600.

The previous prime is 500665859. The next prime is 500665927. The reversal of 500665872 is 278566005.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 500665872.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 739198 + ... + 739874.

Almost surely, 2^500665872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 500665872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (774807552).

500665872 is an abundant number, since it is smaller than the sum of its proper divisors (1048949232).

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

500665872 is a wasteful number, since it uses less digits than its factorization.

500665872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 500665872 is about 22375.5641716583. The cubic root of 500665872 is about 794.0527049973.

The spelling of 500665872 in words is "five hundred million, six hundred sixty-five thousand, eight hundred seventy-two".