208812648 has 32 divisors (see below), whose sum is σ = 569489760. Its totient is φ = 63276480.

The previous prime is 208812613. The next prime is 208812661. The reversal of 208812648 is 846218802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395215 + ... + 395742.

It is an arithmetic number, because the mean of its divisors is an integer number (17796555).

Almost surely, 2^208812648 is an apocalyptic number.

It is an amenable number.

208812648 is an abundant number, since it is smaller than the sum of its proper divisors (360677112).

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

208812648 is a wasteful number, since it uses less digits than its factorization.

208812648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790977 (or 790973 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 208812648 is about 14450.3511376022. The cubic root of 208812648 is about 593.2698348352.

The spelling of 208812648 in words is "two hundred eight million, eight hundred twelve thousand, six hundred forty-eight".