199662 has 16 divisors (see below), whose sum is σ = 404352. Its totient is φ = 65720.

The previous prime is 199657. The next prime is 199669. The reversal of 199662 is 266991.

It is a happy number.

199662 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199669) by changing a digit.

199662 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 487 + ... + 797.

It is an arithmetic number, because the mean of its divisors is an integer number (25272).

2¹⁹⁹⁶⁶² is an apocalyptic number.

199662 is an abundant number, since it is smaller than the sum of its proper divisors (204690).

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

199662 is a wasteful number, since it uses less digits than its factorization.

199662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423.

The product of its digits is 5832, while the sum is 33.

The square root of 199662 is about 446.8355402159. The cubic root of 199662 is about 58.4473922552.

It can be divided in two parts, 199 and 662, that added together give a triangular number (861 = T₄₁).

The spelling of 199662 in words is "one hundred ninety-nine thousand, six hundred sixty-two".