850728 has 16 divisors (see below), whose sum is σ = 2126880. Its totient is φ = 283568.

The previous prime is 850727. The next prime is 850753. The reversal of 850728 is 827058.

It is a junction number, because it is equal to n+sod(n) for n = 850695 and 850704.

It is not an unprimeable number, because it can be changed into a prime (850727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17700 + ... + 17747.

It is an arithmetic number, because the mean of its divisors is an integer number (132930).

2⁸⁵⁰⁷²⁸ is an apocalyptic number.

It is an amenable number.

850728 is an abundant number, since it is smaller than the sum of its proper divisors (1276152).

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

850728 is a wasteful number, since it uses less digits than its factorization.

850728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35456 (or 35452 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 850728 is about 922.3491746622. The cubic root of 850728 is about 94.7538595811.

The spelling of 850728 in words is "eight hundred fifty thousand, seven hundred twenty-eight".