206761856 has 32 divisors (see below), whose sum is σ = 470754480. Its totient is φ = 88611840.

The previous prime is 206761843. The next prime is 206761913. The reversal of 206761856 is 658167602.

It is a tau number, because it is divible by the number of its divisors (32).

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, 114485 + ... + 116276.

Almost surely, 2^206761856 is an apocalyptic number.

It is an amenable number.

206761856 is an abundant number, since it is smaller than the sum of its proper divisors (263992624).

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

206761856 is an equidigital number, since it uses as much as digits as its factorization.

206761856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230782 (or 230770 counting only the distinct ones).

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

The square root of 206761856 is about 14379.2161121530. The cubic root of 206761856 is about 591.3212332473.

The spelling of 206761856 in words is "two hundred six million, seven hundred sixty-one thousand, eight hundred fifty-six".