208968497 has 2 divisors, whose sum is σ = 208968498. Its totient is φ = 208968496.

The previous prime is 208968481. The next prime is 208968521. The reversal of 208968497 is 794869802.

208968497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138391696 + 70576801 = 11764^2 + 8401^2 .

It is a cyclic number.

It is not a de Polignac number, because 208968497 - 2⁴ = 208968481 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (208968197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104484248 + 104484249.

It is an arithmetic number, because the mean of its divisors is an integer number (104484249).

Almost surely, 2^208968497 is an apocalyptic number.

It is an amenable number.

208968497 is a deficient number, since it is larger than the sum of its proper divisors (1).

208968497 is an equidigital number, since it uses as much as digits as its factorization.

208968497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 208968497 is about 14455.7426997024. The cubic root of 208968497 is about 593.4173953686.

The spelling of 208968497 in words is "two hundred eight million, nine hundred sixty-eight thousand, four hundred ninety-seven".