206947 has 4 divisors (see below), whose sum is σ = 222880. Its totient is φ = 191016.

The previous prime is 206939. The next prime is 206951. The reversal of 206947 is 749602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 206947 - 2³ = 206939 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (206917) 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, 7947 + ... + 7972.

It is an arithmetic number, because the mean of its divisors is an integer number (55720).

2²⁰⁶⁹⁴⁷ is an apocalyptic number.

206947 is a deficient number, since it is larger than the sum of its proper divisors (15933).

206947 is a wasteful number, since it uses less digits than its factorization.

206947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15932.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 206947 is about 454.9142776392. The cubic root of 206947 is about 59.1497679263.

It can be divided in two parts, 2069 and 47, that added together give a square (2116 = 46²).

The spelling of 206947 in words is "two hundred six thousand, nine hundred forty-seven".