205970671 has 2 divisors, whose sum is σ = 205970672. Its totient is φ = 205970670.

The previous prime is 205970641. The next prime is 205970701. The reversal of 205970671 is 176079502.

It is a balanced prime because it is at equal distance from previous prime (205970641) and next prime (205970701).

It is a cyclic number.

It is not a de Polignac number, because 205970671 - 2¹³ = 205962479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 205970671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205970641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102985335 + 102985336.

It is an arithmetic number, because the mean of its divisors is an integer number (102985336).

Almost surely, 2^205970671 is an apocalyptic number.

205970671 is a deficient number, since it is larger than the sum of its proper divisors (1).

205970671 is an equidigital number, since it uses as much as digits as its factorization.

205970671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 205970671 is about 14351.6783339092. The cubic root of 205970671 is about 590.5660286614.

The spelling of 205970671 in words is "two hundred five million, nine hundred seventy thousand, six hundred seventy-one".