208314247 has 2 divisors, whose sum is σ = 208314248. Its totient is φ = 208314246.

The previous prime is 208314241. The next prime is 208314269. The reversal of 208314247 is 742413802.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208314247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208314241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104157123 + 104157124.

It is an arithmetic number, because the mean of its divisors is an integer number (104157124).

Almost surely, 2^208314247 is an apocalyptic number.

208314247 is a deficient number, since it is larger than the sum of its proper divisors (1).

208314247 is an equidigital number, since it uses as much as digits as its factorization.

208314247 is an evil number, because the sum of its binary digits is even.

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

The square root of 208314247 is about 14433.0955446155. The cubic root of 208314247 is about 592.7974467151.

The spelling of 208314247 in words is "two hundred eight million, three hundred fourteen thousand, two hundred forty-seven".