206089087 has 2 divisors, whose sum is σ = 206089088. Its totient is φ = 206089086.

The previous prime is 206089043. The next prime is 206089097. The reversal of 206089087 is 780980602.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206089087 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206089097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103044543 + 103044544.

It is an arithmetic number, because the mean of its divisors is an integer number (103044544).

Almost surely, 2^206089087 is an apocalyptic number.

206089087 is a deficient number, since it is larger than the sum of its proper divisors (1).

206089087 is an equidigital number, since it uses as much as digits as its factorization.

206089087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 206089087 is about 14355.8032516470. The cubic root of 206089087 is about 590.6791824242.

The spelling of 206089087 in words is "two hundred six million, eighty-nine thousand, eighty-seven".