206716856 has 16 divisors (see below), whose sum is σ = 387752400. Its totient is φ = 103316224.

The previous prime is 206716849. The next prime is 206716871. The reversal of 206716856 is 658617602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27560 + ... + 34248.

It is an arithmetic number, because the mean of its divisors is an integer number (24234525).

Almost surely, 2^206716856 is an apocalyptic number.

It is an amenable number.

206716856 is a deficient number, since it is larger than the sum of its proper divisors (181035544).

206716856 is a wasteful number, since it uses less digits than its factorization.

206716856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10558 (or 10554 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 206716856 is about 14377.6512685487. The cubic root of 206716856 is about 591.2783314170.

The spelling of 206716856 in words is "two hundred six million, seven hundred sixteen thousand, eight hundred fifty-six".