208481423 has 2 divisors, whose sum is σ = 208481424. Its totient is φ = 208481422.

The previous prime is 208481393. The next prime is 208481437. The reversal of 208481423 is 324184802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 208481423 - 2⁶ = 208481359 is a prime.

It is a super-2 number, since 2×208481423² = 86929007472209858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 208481423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208481123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104240711 + 104240712.

It is an arithmetic number, because the mean of its divisors is an integer number (104240712).

Almost surely, 2^208481423 is an apocalyptic number.

208481423 is a deficient number, since it is larger than the sum of its proper divisors (1).

208481423 is an equidigital number, since it uses as much as digits as its factorization.

208481423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 208481423 is about 14438.8857949635. The cubic root of 208481423 is about 592.9559812512.

The spelling of 208481423 in words is "two hundred eight million, four hundred eighty-one thousand, four hundred twenty-three".