206956943 has 2 divisors, whose sum is σ = 206956944. Its totient is φ = 206956942.

The previous prime is 206956927. The next prime is 206957017. The reversal of 206956943 is 349659602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206956943 - 2⁴ = 206956927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206956894 and 206956903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206956543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103478471 + 103478472.

It is an arithmetic number, because the mean of its divisors is an integer number (103478472).

Almost surely, 2^206956943 is an apocalyptic number.

206956943 is a deficient number, since it is larger than the sum of its proper divisors (1).

206956943 is an equidigital number, since it uses as much as digits as its factorization.

206956943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 206956943 is about 14385.9981579312. The cubic root of 206956943 is about 591.5071521669.

The spelling of 206956943 in words is "two hundred six million, nine hundred fifty-six thousand, nine hundred forty-three".