500689728 has 448 divisors, whose sum is σ = 1896099840. Its totient is φ = 125798400.

The previous prime is 500689697. The next prime is 500689733. The reversal of 500689728 is 827986005.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 7051933 + ... + 7052003.

Almost surely, 2^500689728 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 500689728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (948049920).

500689728 is an abundant number, since it is smaller than the sum of its proper divisors (1395410112).

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

500689728 is a wasteful number, since it uses less digits than its factorization.

500689728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 500689728 is about 22376.0972468391. The cubic root of 500689728 is about 794.0653166155.

The spelling of 500689728 in words is "five hundred million, six hundred eighty-nine thousand, seven hundred twenty-eight".