206697 has 4 divisors (see below), whose sum is σ = 275600. Its totient is φ = 137796.

The previous prime is 206651. The next prime is 206699. The reversal of 206697 is 796602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 206697 - 2¹⁴ = 190313 is a prime.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 206697.

It is not an unprimeable number, because it can be changed into a prime (206699) 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, 34447 + ... + 34452.

It is an arithmetic number, because the mean of its divisors is an integer number (68900).

2²⁰⁶⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

206697 is a deficient number, since it is larger than the sum of its proper divisors (68903).

206697 is an equidigital number, since it uses as much as digits as its factorization.

206697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68902.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 206697 is about 454.6394175608. The cubic root of 206697 is about 59.1259399243.

It can be divided in two parts, 206 and 697, that added together give a triangular number (903 = T₄₂).

The spelling of 206697 in words is "two hundred six thousand, six hundred ninety-seven".