206836285 has 4 divisors (see below), whose sum is σ = 248203548. Its totient is φ = 165469024.

The previous prime is 206836213. The next prime is 206836307. The reversal of 206836285 is 582638602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 139169209 + 67667076 = 11797^2 + 8226^2 .

It is a cyclic number.

It is not a de Polignac number, because 206836285 - 2⁹ = 206835773 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

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, 20683624 + ... + 20683633.

It is an arithmetic number, because the mean of its divisors is an integer number (62050887).

Almost surely, 2^206836285 is an apocalyptic number.

It is an amenable number.

206836285 is a deficient number, since it is larger than the sum of its proper divisors (41367263).

206836285 is an equidigital number, since it uses as much as digits as its factorization.

206836285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41367262.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 206836285 is about 14381.8039549981. The cubic root of 206836285 is about 591.3921782610.

The spelling of 206836285 in words is "two hundred six million, eight hundred thirty-six thousand, two hundred eighty-five".