199976 has 16 divisors (see below), whose sum is σ = 428640. Its totient is φ = 85680.

The previous prime is 199967. The next prime is 199999. The reversal of 199976 is 679991.

It is a happy number.

It is an unprimeable number.

199976 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 (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1730 + ... + 1841.

It is an arithmetic number, because the mean of its divisors is an integer number (26790).

2¹⁹⁹⁹⁷⁶ is an apocalyptic number.

It is an amenable number.

199976 is an abundant number, since it is smaller than the sum of its proper divisors (228664).

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

199976 is a wasteful number, since it uses less digits than its factorization.

199976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3584 (or 3580 counting only the distinct ones).

The product of its digits is 30618, while the sum is 41.

The square root of 199976 is about 447.1867618792. The cubic root of 199976 is about 58.4780154565.

The spelling of 199976 in words is "one hundred ninety-nine thousand, nine hundred seventy-six".