208610085 has 16 divisors (see below), whose sum is σ = 334987776. Its totient is φ = 110854848.

The previous prime is 208610081. The next prime is 208610099. The reversal of 208610085 is 580016802.

208610085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 208610085 - 2² = 208610081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208610081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20949 + ... + 29258.

It is an arithmetic number, because the mean of its divisors is an integer number (20936736).

Almost surely, 2^208610085 is an apocalyptic number.

It is an amenable number.

208610085 is a deficient number, since it is larger than the sum of its proper divisors (126377691).

208610085 is a wasteful number, since it uses less digits than its factorization.

208610085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50492.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 208610085 is about 14443.3405069603. The cubic root of 208610085 is about 593.0779349049.

Adding to 208610085 its reverse (580016802), we get a palindrome (788626887).

The spelling of 208610085 in words is "two hundred eight million, six hundred ten thousand, eighty-five".