208871856 has 30 divisors (see below), whose sum is σ = 584551500. Its totient is φ = 69623904.

The previous prime is 208871837. The next prime is 208871857. The reversal of 208871856 is 658178802.

It is not an unprimeable number, because it can be changed into a prime (208871857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 725106 + ... + 725393.

It is an arithmetic number, because the mean of its divisors is an integer number (19485050).

Almost surely, 2^208871856 is an apocalyptic number.

It is an amenable number.

208871856 is an abundant number, since it is smaller than the sum of its proper divisors (375679644).

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

208871856 is a wasteful number, since it uses less digits than its factorization.

208871856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450513 (or 1450504 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The square root of 208871856 is about 14452.3996623398. The cubic root of 208871856 is about 593.3259026409.

The spelling of 208871856 in words is "two hundred eight million, eight hundred seventy-one thousand, eight hundred fifty-six".