199670 has 16 divisors (see below), whose sum is σ = 368928. Its totient is φ = 77760.

The previous prime is 199669. The next prime is 199673. The reversal of 199670 is 76991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199673) 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 7 ways as a sum of consecutive naturals, for example, 167 + ... + 653.

It is an arithmetic number, because the mean of its divisors is an integer number (23058).

2¹⁹⁹⁶⁷⁰ is an apocalyptic number.

199670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199670 is a deficient number, since it is larger than the sum of its proper divisors (169258).

199670 is a wasteful number, since it uses less digits than its factorization.

199670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 199670 is about 446.8444919656. The cubic root of 199670 is about 58.4481728626.

The spelling of 199670 in words is "one hundred ninety-nine thousand, six hundred seventy".