208004423 has 4 divisors (see below), whose sum is σ = 226913928. Its totient is φ = 189094920.

The previous prime is 208004359. The next prime is 208004431. The reversal of 208004423 is 324400802.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 208004423 - 2⁶ = 208004359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208003423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9454736 + ... + 9454757.

It is an arithmetic number, because the mean of its divisors is an integer number (56728482).

Almost surely, 2^208004423 is an apocalyptic number.

208004423 is a deficient number, since it is larger than the sum of its proper divisors (18909505).

208004423 is a wasteful number, since it uses less digits than its factorization.

208004423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18909504.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 208004423 is about 14422.3584409763. The cubic root of 208004423 is about 592.5034133697.

The spelling of 208004423 in words is "two hundred eight million, four thousand, four hundred twenty-three".