208768983 has 8 divisors (see below), whose sum is σ = 278589696. Its totient is φ = 139063800.

The previous prime is 208768981. The next prime is 208768997. The reversal of 208768983 is 389867802.

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

It is not a de Polignac number, because 208768983 - 2¹ = 208768981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208768981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24573 + ... + 31958.

It is an arithmetic number, because the mean of its divisors is an integer number (34823712).

Almost surely, 2^208768983 is an apocalyptic number.

208768983 is a deficient number, since it is larger than the sum of its proper divisors (69820713).

208768983 is a wasteful number, since it uses less digits than its factorization.

208768983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57765.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 208768983 is about 14448.8401956697. The cubic root of 208768983 is about 593.2284788901.

The spelling of 208768983 in words is "two hundred eight million, seven hundred sixty-eight thousand, nine hundred eighty-three".