206648 has 16 divisors (see below), whose sum is σ = 417480. Its totient is φ = 95328.

The previous prime is 206641. The next prime is 206651. The reversal of 206648 is 846602.

206648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206641) by changing a digit.

206648 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, 890 + ... + 1097.

206648 is a Friedman number, since it can be written as 20^4-8+6^6, using all its digits and the basic arithmetic operations.

2²⁰⁶⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

206648 is an abundant number, since it is smaller than the sum of its proper divisors (210832).

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

206648 is a wasteful number, since it uses less digits than its factorization.

206648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006 (or 2002 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 206648 is about 454.5855255065. The cubic root of 206648 is about 59.1212673843.

The spelling of 206648 in words is "two hundred six thousand, six hundred forty-eight".