728846636 has 48 divisors (see below), whose sum is σ = 1484480256. Its totient is φ = 306656064.

The previous prime is 728846597. The next prime is 728846659. The reversal of 728846636 is 636648827.

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, 830630 + ... + 831506.

It is an arithmetic number, because the mean of its divisors is an integer number (30926672).

Almost surely, 2^728846636 is an apocalyptic number.

It is an amenable number.

728846636 is an abundant number, since it is smaller than the sum of its proper divisors (755633620).

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

728846636 is a wasteful number, since it uses less digits than its factorization.

728846636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398 (or 1396 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 50.

The square root of 728846636 is about 26997.1597765395. The cubic root of 728846636 is about 899.9368828165.

The spelling of 728846636 in words is "seven hundred twenty-eight million, eight hundred forty-six thousand, six hundred thirty-six".