206719872 has 32 divisors (see below), whose sum is σ = 549100680. Its totient is φ = 68906496.

The previous prime is 206719817. The next prime is 206719879. The reversal of 206719872 is 278917602.

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

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206719879) 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, 268783 + ... + 269550.

Almost surely, 2^206719872 is an apocalyptic number.

It is an amenable number.

206719872 is an abundant number, since it is smaller than the sum of its proper divisors (342380808).

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

206719872 is an equidigital number, since it uses as much as digits as its factorization.

206719872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538350 (or 538338 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 206719872 is about 14377.7561531694. The cubic root of 206719872 is about 591.2812069877.

The spelling of 206719872 in words is "two hundred six million, seven hundred nineteen thousand, eight hundred seventy-two".