208681283 has 4 divisors (see below), whose sum is σ = 211620528. Its totient is φ = 205742040.

The previous prime is 208681261. The next prime is 208681337. The reversal of 208681283 is 382186802.

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 208681283 - 2⁶ = 208681219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208683283) 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, 1469516 + ... + 1469657.

It is an arithmetic number, because the mean of its divisors is an integer number (52905132).

Almost surely, 2^208681283 is an apocalyptic number.

208681283 is a deficient number, since it is larger than the sum of its proper divisors (2939245).

208681283 is an equidigital number, since it uses as much as digits as its factorization.

208681283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939244.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 208681283 is about 14445.8050312193. The cubic root of 208681283 is about 593.1453991407.

The spelling of 208681283 in words is "two hundred eight million, six hundred eighty-one thousand, two hundred eighty-three".