206893 has 4 divisors (see below), whose sum is σ = 207868. Its totient is φ = 205920.

The previous prime is 206887. The next prime is 206897. The reversal of 206893 is 398602.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 64009 + 142884 = 253^2 + 378^2 .

It is a cyclic number.

It is not a de Polignac number, because 206893 - 2¹³ = 198701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206897) 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, 18 + ... + 643.

It is an arithmetic number, because the mean of its divisors is an integer number (51967).

2²⁰⁶⁸⁹³ is an apocalyptic number.

It is an amenable number.

206893 is a deficient number, since it is larger than the sum of its proper divisors (975).

206893 is an equidigital number, since it uses as much as digits as its factorization.

206893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 206893 is about 454.8549219257. The cubic root of 206893 is about 59.1446227034.

The spelling of 206893 in words is "two hundred six thousand, eight hundred ninety-three".