208082985 has 16 divisors (see below), whose sum is σ = 363199680. Its totient is φ = 100888640.

The previous prime is 208082981. The next prime is 208082993. The reversal of 208082985 is 589280802.

It is not a de Polignac number, because 208082985 - 2² = 208082981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208082981) 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, 630390 + ... + 630719.

It is an arithmetic number, because the mean of its divisors is an integer number (22699980).

Almost surely, 2^208082985 is an apocalyptic number.

It is an amenable number.

208082985 is a deficient number, since it is larger than the sum of its proper divisors (155116695).

208082985 is a wasteful number, since it uses less digits than its factorization.

208082985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261128.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 208082985 is about 14425.0818021944. The cubic root of 208082985 is about 592.5779989536.

The spelling of 208082985 in words is "two hundred eight million, eighty-two thousand, nine hundred eighty-five".