206786930 has 32 divisors (see below), whose sum is σ = 425990016. Its totient is φ = 70798464.

The previous prime is 206786897. The next prime is 206786959. The reversal of 206786930 is 39687602.

206786930 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 61862 + ... + 65118.

It is an arithmetic number, because the mean of its divisors is an integer number (13312188).

Almost surely, 2^206786930 is an apocalyptic number.

206786930 is an abundant number, since it is smaller than the sum of its proper divisors (219203086).

206786930 is a wasteful number, since it uses less digits than its factorization.

206786930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4178.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 206786930 is about 14380.0879691329. The cubic root of 206786930 is about 591.3451354467.

The spelling of 206786930 in words is "two hundred six million, seven hundred eighty-six thousand, nine hundred thirty".