208317049 has 16 divisors (see below), whose sum is σ = 221616000. Its totient is φ = 195412096.

The previous prime is 208317047. The next prime is 208317071. The reversal of 208317049 is 940713802.

It is a cyclic number.

It is not a de Polignac number, because 208317049 - 2¹ = 208317047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208317047) 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, 304662 + ... + 305344.

It is an arithmetic number, because the mean of its divisors is an integer number (13851000).

Almost surely, 2^208317049 is an apocalyptic number.

It is an amenable number.

208317049 is a deficient number, since it is larger than the sum of its proper divisors (13298951).

208317049 is a wasteful number, since it uses less digits than its factorization.

208317049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 208317049 is about 14433.1926128629. The cubic root of 208317049 is about 592.8001045762.

The spelling of 208317049 in words is "two hundred eight million, three hundred seventeen thousand, forty-nine".