728859072 has 56 divisors (see below), whose sum is σ = 1932529536. Its totient is φ = 242437888.

The previous prime is 728859017. The next prime is 728859119. The reversal of 728859072 is 270958827.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92803 + ... + 100349.

It is an arithmetic number, because the mean of its divisors is an integer number (34509456).

Almost surely, 2^728859072 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 728859072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (966264768).

728859072 is an abundant number, since it is smaller than the sum of its proper divisors (1203670464).

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

728859072 is a wasteful number, since it uses less digits than its factorization.

728859072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8065 (or 8055 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 728859072 is about 26997.3900960815. The cubic root of 728859072 is about 899.9420012007.

The spelling of 728859072 in words is "seven hundred twenty-eight million, eight hundred fifty-nine thousand, seventy-two".