206774 has 4 divisors (see below), whose sum is σ = 310164. Its totient is φ = 103386.

The previous prime is 206749. The next prime is 206779. The reversal of 206774 is 477602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 477602 = 2 ⋅238801.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51692 + ... + 51695.

It is an arithmetic number, because the mean of its divisors is an integer number (77541).

2²⁰⁶⁷⁷⁴ is an apocalyptic number.

206774 is a deficient number, since it is larger than the sum of its proper divisors (103390).

206774 is a wasteful number, since it uses less digits than its factorization.

206774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103389.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 206774 is about 454.7240921702. The cubic root of 206774 is about 59.1332809955.

The spelling of 206774 in words is "two hundred six thousand, seven hundred seventy-four".