208517034 has 32 divisors (see below), whose sum is σ = 474729984. Its totient is φ = 60439280.

The previous prime is 208517003. The next prime is 208517081. The reversal of 208517034 is 430715802.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 208516992 and 208517010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67164 + ... + 70199.

It is an arithmetic number, because the mean of its divisors is an integer number (14835312).

Almost surely, 2^208517034 is an apocalyptic number.

208517034 is an abundant number, since it is smaller than the sum of its proper divisors (266212950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208517034 is a wasteful number, since it uses less digits than its factorization.

208517034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137402.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 208517034 is about 14440.1189053276. The cubic root of 208517034 is about 592.9897405393.

The spelling of 208517034 in words is "two hundred eight million, five hundred seventeen thousand, thirty-four".