208312847 has 2 divisors, whose sum is σ = 208312848. Its totient is φ = 208312846.

The previous prime is 208312807. The next prime is 208312879. The reversal of 208312847 is 748213802.

208312847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 208312847 - 2¹⁶ = 208247311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208312807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104156423 + 104156424.

It is an arithmetic number, because the mean of its divisors is an integer number (104156424).

Almost surely, 2^208312847 is an apocalyptic number.

208312847 is a deficient number, since it is larger than the sum of its proper divisors (1).

208312847 is an equidigital number, since it uses as much as digits as its factorization.

208312847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 208312847 is about 14433.0470448897. The cubic root of 208312847 is about 592.7961187242.

The spelling of 208312847 in words is "two hundred eight million, three hundred twelve thousand, eight hundred forty-seven".