209948 has 12 divisors (see below), whose sum is σ = 372960. Its totient is φ = 103392.

The previous prime is 209939. The next prime is 209953. The reversal of 209948 is 849902.

It is a congruent number.

It is an unprimeable number.

209948 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, 68 + ... + 651.

It is an arithmetic number, because the mean of its divisors is an integer number (31080).

2²⁰⁹⁹⁴⁸ is an apocalyptic number.

It is an amenable number.

209948 is a deficient number, since it is larger than the sum of its proper divisors (163012).

209948 is a wasteful number, since it uses less digits than its factorization.

209948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 209948 is about 458.2008293314. The cubic root of 209948 is about 59.4343130283.

The spelling of 209948 in words is "two hundred nine thousand, nine hundred forty-eight".