206871216 has 20 divisors (see below), whose sum is σ = 534417432. Its totient is φ = 68957056.

The previous prime is 206871173. The next prime is 206871241. The reversal of 206871216 is 612178602.

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, 2154861 + ... + 2154956.

Almost surely, 2^206871216 is an apocalyptic number.

It is an amenable number.

206871216 is an abundant number, since it is smaller than the sum of its proper divisors (327546216).

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

206871216 is a wasteful number, since it uses less digits than its factorization.

206871216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309828 (or 4309822 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 206871216 is about 14383.0183202275. The cubic root of 206871216 is about 591.4254682894.

The spelling of 206871216 in words is "two hundred six million, eight hundred seventy-one thousand, two hundred sixteen".