208089243 has 10 divisors (see below), whose sum is σ = 310849484. Its totient is φ = 138726108.

The previous prime is 208089241. The next prime is 208089253. The reversal of 208089243 is 342980802.

208089243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 208089243 - 2¹ = 208089241 is a prime.

It is a super-2 number, since 2×208089243² = 86602266104626098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 208089198 and 208089207.

It is not an unprimeable number, because it can be changed into a prime (208089241) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1284421 + ... + 1284582.

Almost surely, 2^208089243 is an apocalyptic number.

208089243 is a deficient number, since it is larger than the sum of its proper divisors (102760241).

208089243 is an equidigital number, since it uses as much as digits as its factorization.

208089243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569015 (or 2569006 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 208089243 is about 14425.2987144114. The cubic root of 208089243 is about 592.5839393976.

The spelling of 208089243 in words is "two hundred eight million, eighty-nine thousand, two hundred forty-three".