208423243 has 8 divisors (see below), whose sum is σ = 238296320. Its totient is φ = 178574760.

The previous prime is 208423231. The next prime is 208423253. The reversal of 208423243 is 342324802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 208423243 - 2¹⁷ = 208292171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208423253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18748 + ... + 27718.

It is an arithmetic number, because the mean of its divisors is an integer number (29787040).

Almost surely, 2^208423243 is an apocalyptic number.

208423243 is a deficient number, since it is larger than the sum of its proper divisors (29873077).

208423243 is an equidigital number, since it uses as much as digits as its factorization.

208423243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12297.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 208423243 is about 14436.8709559932. The cubic root of 208423243 is about 592.9008182410.

The spelling of 208423243 in words is "two hundred eight million, four hundred twenty-three thousand, two hundred forty-three".