206086771 has 8 divisors (see below), whose sum is σ = 226464624. Its totient is φ = 185982720.

The previous prime is 206086757. The next prime is 206086849. The reversal of 206086771 is 177680602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206086771 - 2¹⁵ = 206054003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206086771.

It is not an unprimeable number, because it can be changed into a prime (206086721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66870 + ... + 69883.

It is an arithmetic number, because the mean of its divisors is an integer number (28308078).

Almost surely, 2^206086771 is an apocalyptic number.

206086771 is a deficient number, since it is larger than the sum of its proper divisors (20377853).

206086771 is a wasteful number, since it uses less digits than its factorization.

206086771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136901.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 206086771 is about 14355.7225871776. The cubic root of 206086771 is about 590.6769697595.

It can be divided in two parts, 2060 and 86771, that added together give a triangular number (88831 = T₄₂₁).

The spelling of 206086771 in words is "two hundred six million, eighty-six thousand, seven hundred seventy-one".