206997 has 8 divisors (see below), whose sum is σ = 315456. Its totient is φ = 118272.

The previous prime is 206993. The next prime is 207013. The reversal of 206997 is 799602.

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

It is not a de Polignac number, because 206997 - 2² = 206993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4908 + ... + 4949.

It is an arithmetic number, because the mean of its divisors is an integer number (39432).

2²⁰⁶⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

206997 is a deficient number, since it is larger than the sum of its proper divisors (108459).

206997 is an equidigital number, since it uses as much as digits as its factorization.

206997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9867.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 206997 is about 454.9692297288. The cubic root of 206997 is about 59.1545312236.

It can be divided in two parts, 20699 and 7, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 206997 in words is "two hundred six thousand, nine hundred ninety-seven".