208097293 has 2 divisors, whose sum is σ = 208097294. Its totient is φ = 208097292.

The previous prime is 208097257. The next prime is 208097303. The reversal of 208097293 is 392790802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199317924 + 8779369 = 14118^2 + 2963^2 .

It is a cyclic number.

It is not a de Polignac number, because 208097293 - 2²¹ = 206000141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208097693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104048646 + 104048647.

It is an arithmetic number, because the mean of its divisors is an integer number (104048647).

Almost surely, 2^208097293 is an apocalyptic number.

It is an amenable number.

208097293 is a deficient number, since it is larger than the sum of its proper divisors (1).

208097293 is an equidigital number, since it uses as much as digits as its factorization.

208097293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 208097293 is about 14425.5777353976. The cubic root of 208097293 is about 592.5915807332.

The spelling of 208097293 in words is "two hundred eight million, ninety-seven thousand, two hundred ninety-three".