199628 has 24 divisors (see below), whose sum is σ = 411600. Its totient is φ = 83520.

The previous prime is 199621. The next prime is 199637. The reversal of 199628 is 826991.

199628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (199621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398 + ... + 746.

It is an arithmetic number, because the mean of its divisors is an integer number (17150).

2¹⁹⁹⁶²⁸ is an apocalyptic number.

It is an amenable number.

199628 is an abundant number, since it is smaller than the sum of its proper divisors (211972).

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

199628 is a wasteful number, since it uses less digits than its factorization.

199628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 375 counting only the distinct ones).

The product of its digits is 7776, while the sum is 35.

The square root of 199628 is about 446.7974932786. The cubic root of 199628 is about 58.4440744412. Note that the first 3 decimals are identical.

The spelling of 199628 in words is "one hundred ninety-nine thousand, six hundred twenty-eight".