206955 has 40 divisors (see below), whose sum is σ = 429792. Its totient is φ = 93312.

The previous prime is 206953. The next prime is 206993. The reversal of 206955 is 559602.

206955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 206955 - 2¹ = 206953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 206955.

It is not an unprimeable number, because it can be changed into a prime (206951) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2799 + ... + 2871.

2²⁰⁶⁹⁵⁵ is an apocalyptic number.

206955 is an abundant number, since it is smaller than the sum of its proper divisors (222837).

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

206955 is an equidigital number, since it uses as much as digits as its factorization.

206955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 206955 is about 454.9230704196. The cubic root of 206955 is about 59.1505301054.

The spelling of 206955 in words is "two hundred six thousand, nine hundred fifty-five".