206788972 has 48 divisors (see below), whose sum is σ = 405271552. Its totient is φ = 91679040.

The previous prime is 206788961. The next prime is 206789017. The reversal of 206788972 is 279887602.

206788972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262363 + ... + 263149.

Almost surely, 2^206788972 is an apocalyptic number.

It is an amenable number.

206788972 is a deficient number, since it is larger than the sum of its proper divisors (198482580).

206788972 is a wasteful number, since it uses less digits than its factorization.

206788972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 206788972 is about 14380.1589699141. The cubic root of 206788972 is about 591.3470819314.

The spelling of 206788972 in words is "two hundred six million, seven hundred eighty-eight thousand, nine hundred seventy-two".