728866112 has 28 divisors (see below), whose sum is σ = 1557602676. Its totient is φ = 336399360.

The previous prime is 728866069. The next prime is 728866121. The reversal of 728866112 is 211668827.

It can be written as a sum of positive squares in 2 ways, for example, as 56190016 + 672676096 = 7496^2 + 25936^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 728866112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437189 + ... + 438852.

It is an arithmetic number, because the mean of its divisors is an integer number (55628667).

Almost surely, 2^728866112 is an apocalyptic number.

It is an amenable number.

728866112 is an abundant number, since it is smaller than the sum of its proper divisors (828736564).

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

728866112 is a wasteful number, since it uses less digits than its factorization.

728866112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876066 (or 876056 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 728866112 is about 26997.5204787403. The cubic root of 728866112 is about 899.9448986842.

The spelling of 728866112 in words is "seven hundred twenty-eight million, eight hundred sixty-six thousand, one hundred twelve".