206976976 has 20 divisors (see below), whose sum is σ = 405526500. Its totient is φ = 102324992.

The previous prime is 206976971. The next prime is 206976983. The reversal of 206976976 is 679679602.

206976976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50126400 + 156850576 = 7080^2 + 12524^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206976971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71251 + ... + 74098.

It is an arithmetic number, because the mean of its divisors is an integer number (20276325).

Almost surely, 2^206976976 is an apocalyptic number.

It is an amenable number.

206976976 is a deficient number, since it is larger than the sum of its proper divisors (198549524).

206976976 is a wasteful number, since it uses less digits than its factorization.

206976976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145446 (or 145440 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 52.

The square root of 206976976 is about 14386.6944083761. The cubic root of 206976976 is about 591.5262371036.

The spelling of 206976976 in words is "two hundred six million, nine hundred seventy-six thousand, nine hundred seventy-six".