206480047 has 2 divisors, whose sum is σ = 206480048. Its totient is φ = 206480046.

The previous prime is 206479981. The next prime is 206480051. The reversal of 206480047 is 740084602.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206480047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206480347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103240023 + 103240024.

It is an arithmetic number, because the mean of its divisors is an integer number (103240024).

Almost surely, 2^206480047 is an apocalyptic number.

206480047 is a deficient number, since it is larger than the sum of its proper divisors (1).

206480047 is an equidigital number, since it uses as much as digits as its factorization.

206480047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 206480047 is about 14369.4135927671. The cubic root of 206480047 is about 591.0524612182.

The spelling of 206480047 in words is "two hundred six million, four hundred eighty thousand, forty-seven".