208486564 has 48 divisors (see below), whose sum is σ = 440266176. Its totient is φ = 85104000.

The previous prime is 208486549. The next prime is 208486571. The reversal of 208486564 is 465684802.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 208486564.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16239 + ... + 26089.

It is an arithmetic number, because the mean of its divisors is an integer number (9172212).

Almost surely, 2^208486564 is an apocalyptic number.

It is an amenable number.

208486564 is an abundant number, since it is smaller than the sum of its proper divisors (231779612).

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

208486564 is a wasteful number, since it uses less digits than its factorization.

208486564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9916 (or 9914 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 43.

The square root of 208486564 is about 14439.0638200681. The cubic root of 208486564 is about 592.9608551653.

The spelling of 208486564 in words is "two hundred eight million, four hundred eighty-six thousand, five hundred sixty-four".