196828728 has 16 divisors (see below), whose sum is σ = 492071880. Its totient is φ = 65609568.

The previous prime is 196828693. The next prime is 196828739. The reversal of 196828728 is 827828691.

It is a happy number.

196828728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 4100575 + ... + 4100622.

Almost surely, 2^196828728 is an apocalyptic number.

It is an amenable number.

196828728 is an abundant number, since it is smaller than the sum of its proper divisors (295243152).

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

196828728 is a wasteful number, since it uses less digits than its factorization.

196828728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8201206 (or 8201202 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The square root of 196828728 is about 14029.5662085469. The cubic root of 196828728 is about 581.6961132465.

The spelling of 196828728 in words is "one hundred ninety-six million, eight hundred twenty-eight thousand, seven hundred twenty-eight".