206715343 has 2 divisors, whose sum is σ = 206715344. Its totient is φ = 206715342.

The previous prime is 206715287. The next prime is 206715349. The reversal of 206715343 is 343517602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206715343 - 2⁹ = 206714831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206715349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103357671 + 103357672.

It is an arithmetic number, because the mean of its divisors is an integer number (103357672).

Almost surely, 2^206715343 is an apocalyptic number.

206715343 is a deficient number, since it is larger than the sum of its proper divisors (1).

206715343 is an equidigital number, since it uses as much as digits as its factorization.

206715343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 206715343 is about 14377.5986520698. The cubic root of 206715343 is about 591.2768888540.

The spelling of 206715343 in words is "two hundred six million, seven hundred fifteen thousand, three hundred forty-three".