206987824 has 20 divisors (see below), whose sum is σ = 422146840. Its totient is φ = 98046720.

The previous prime is 206987797. The next prime is 206987827. The reversal of 206987824 is 428789602.

It is not an unprimeable number, because it can be changed into a prime (206987827) 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, 340137 + ... + 340744.

It is an arithmetic number, because the mean of its divisors is an integer number (21107342).

Almost surely, 2^206987824 is an apocalyptic number.

It is an amenable number.

206987824 is an abundant number, since it is smaller than the sum of its proper divisors (215159016).

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

206987824 is a wasteful number, since it uses less digits than its factorization.

206987824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680908 (or 680902 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 206987824 is about 14387.0714184646. The cubic root of 206987824 is about 591.5365712072.

The spelling of 206987824 in words is "two hundred six million, nine hundred eighty-seven thousand, eight hundred twenty-four".