206820884 has 12 divisors (see below), whose sum is σ = 370353984. Its totient is φ = 101005464.

The previous prime is 206820877. The next prime is 206820961. The reversal of 206820884 is 488028602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601052 + ... + 601395.

It is an arithmetic number, because the mean of its divisors is an integer number (30862832).

Almost surely, 2^206820884 is an apocalyptic number.

It is an amenable number.

206820884 is a deficient number, since it is larger than the sum of its proper divisors (163533100).

206820884 is a wasteful number, since it uses less digits than its factorization.

206820884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202494 (or 1202492 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 206820884 is about 14381.2685115048. The cubic root of 206820884 is about 591.3774995712.

The spelling of 206820884 in words is "two hundred six million, eight hundred twenty thousand, eight hundred eighty-four".