206788 has 12 divisors (see below), whose sum is σ = 383292. Its totient is φ = 97280.

The previous prime is 206783. The next prime is 206803. The reversal of 206788 is 887602.

206788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 186624 + 20164 = 432^2 + 142^2 .

It is a super-2 number, since 2×206788² = 85522553888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206783) 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, 1453 + ... + 1588.

It is an arithmetic number, because the mean of its divisors is an integer number (31941).

2²⁰⁶⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

206788 is a deficient number, since it is larger than the sum of its proper divisors (176504).

206788 is a wasteful number, since it uses less digits than its factorization.

206788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062 (or 3060 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 206788 is about 454.7394858598. The cubic root of 206788 is about 59.1346155399.

The spelling of 206788 in words is "two hundred six thousand, seven hundred eighty-eight".