209796 has 12 divisors (see below), whose sum is σ = 489552. Its totient is φ = 69928.

The previous prime is 209789. The next prime is 209801. The reversal of 209796 is 697902.

209796 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

209796 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8730 + ... + 8753.

It is an arithmetic number, because the mean of its divisors is an integer number (40796).

2²⁰⁹⁷⁹⁶ is an apocalyptic number.

It is an amenable number.

209796 is an abundant number, since it is smaller than the sum of its proper divisors (279756).

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

209796 is a wasteful number, since it uses less digits than its factorization.

209796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17490 (or 17488 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 209796 is about 458.0349331656. The cubic root of 209796 is about 59.4199663065.

The spelling of 209796 in words is "two hundred nine thousand, seven hundred ninety-six".