206844804 has 18 divisors (see below), whose sum is σ = 522857790. Its totient is φ = 68948256.

The previous prime is 206844769. The next prime is 206844817. The reversal of 206844804 is 408448602.

206844804 is a `hidden beast` number, since 206 + 8 + 448 + 0 + 4 = 666.

206844804 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 205979904 + 864900 = 14352^2 + 930^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 5745689 = 206844804 / (2 + 0 + 6 + 8 + 4 + 4 + 8 + 0 + 4).

206844804 is strictly pandigital in base 9.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 2872809 + ... + 2872880.

It is an arithmetic number, because the mean of its divisors is an integer number (29047655).

Almost surely, 2^206844804 is an apocalyptic number.

It is an amenable number.

206844804 is an abundant number, since it is smaller than the sum of its proper divisors (316012986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206844804 is a wasteful number, since it uses less digits than its factorization.

206844804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5745699 (or 5745694 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 206844804 is about 14382.1001248079. The cubic root of 206844804 is about 591.4002974051.

The spelling of 206844804 in words is "two hundred six million, eight hundred forty-four thousand, eight hundred four".