206634 has 8 divisors (see below), whose sum is σ = 413280. Its totient is φ = 68876.

The previous prime is 206627. The next prime is 206639. The reversal of 206634 is 436602.

206634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

206634 is an admirable number.

It is a super-3 number, since 3×206634³ = 26468333806944312, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 206634.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17214 + ... + 17225.

It is an arithmetic number, because the mean of its divisors is an integer number (51660).

2²⁰⁶⁶³⁴ is an apocalyptic number.

206634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

206634 is a wasteful number, since it uses less digits than its factorization.

206634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34444.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 206634 is about 454.5701266031. The cubic root of 206634 is about 59.1199322372.

The spelling of 206634 in words is "two hundred six thousand, six hundred thirty-four".