208085411 has 4 divisors (see below), whose sum is σ = 215260800. Its totient is φ = 200910024.

The previous prime is 208085407. The next prime is 208085413. The reversal of 208085411 is 114580802.

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 208085411 - 2² = 208085407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 7175359 = 208085411 / (2 + 0 + 8 + 0 + 8 + 5 + 4 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208085413) 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 3 ways as a sum of consecutive naturals, for example, 3587651 + ... + 3587708.

It is an arithmetic number, because the mean of its divisors is an integer number (53815200).

Almost surely, 2^208085411 is an apocalyptic number.

208085411 is a deficient number, since it is larger than the sum of its proper divisors (7175389).

208085411 is an equidigital number, since it uses as much as digits as its factorization.

208085411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7175388.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 208085411 is about 14425.1658915938. The cubic root of 208085411 is about 592.5803018628.

The spelling of 208085411 in words is "two hundred eight million, eighty-five thousand, four hundred eleven".