206906928 has 20 divisors (see below), whose sum is σ = 534509688. Its totient is φ = 68968960.

The previous prime is 206906911. The next prime is 206906929. The reversal of 206906928 is 829609602.

It is a self number, because there is not a number n which added to its sum of digits gives 206906928.

It is not an unprimeable number, because it can be changed into a prime (206906929) 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 in 3 ways as a sum of consecutive naturals, for example, 2155233 + ... + 2155328.

Almost surely, 2^206906928 is an apocalyptic number.

It is an amenable number.

206906928 is an abundant number, since it is smaller than the sum of its proper divisors (327602760).

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

206906928 is a wasteful number, since it uses less digits than its factorization.

206906928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4310572 (or 4310566 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 206906928 is about 14384.2597306917. The cubic root of 206906928 is about 591.4594987544.

The spelling of 206906928 in words is "two hundred six million, nine hundred six thousand, nine hundred twenty-eight".