208530693 has 48 divisors (see below), whose sum is σ = 365421056. Its totient is φ = 116348400.

The previous prime is 208530661. The next prime is 208530701. The reversal of 208530693 is 396035802.

It is not a de Polignac number, because 208530693 - 2⁵ = 208530661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208530613) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71718 + ... + 74568.

Almost surely, 2^208530693 is an apocalyptic number.

It is an amenable number.

208530693 is a deficient number, since it is larger than the sum of its proper divisors (156890363).

208530693 is an equidigital number, since it uses as much as digits as its factorization.

208530693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916 (or 2904 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 208530693 is about 14440.5918507518. The cubic root of 208530693 is about 593.0026882745.

The spelling of 208530693 in words is "two hundred eight million, five hundred thirty thousand, six hundred ninety-three".