206882649 has 6 divisors (see below), whose sum is σ = 298830506. Its totient is φ = 137921760.

The previous prime is 206882647. The next prime is 206882693. The reversal of 206882649 is 946288602.

206882649 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 only one way, i.e., 187142400 + 19740249 = 13680^2 + 4443^2 .

It is not a de Polignac number, because 206882649 - 2¹ = 206882647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206882647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11493472 + ... + 11493489.

Almost surely, 2^206882649 is an apocalyptic number.

It is an amenable number.

206882649 is a deficient number, since it is larger than the sum of its proper divisors (91947857).

206882649 is a wasteful number, since it uses less digits than its factorization.

206882649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22986967 (or 22986964 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 206882649 is about 14383.4157626066. The cubic root of 206882649 is about 591.4363633814.

The spelling of 206882649 in words is "two hundred six million, eight hundred eighty-two thousand, six hundred forty-nine".