208066986 has 24 divisors (see below), whose sum is σ = 474539520. Its totient is φ = 65705256.

The previous prime is 208066951. The next prime is 208066987. The reversal of 208066986 is 689660802.

It is not an unprimeable number, because it can be changed into a prime (208066987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 303850 + ... + 304533.

It is an arithmetic number, because the mean of its divisors is an integer number (19772480).

Almost surely, 2^208066986 is an apocalyptic number.

208066986 is an abundant number, since it is smaller than the sum of its proper divisors (266472534).

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

208066986 is a wasteful number, since it uses less digits than its factorization.

208066986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608410 (or 608407 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 208066986 is about 14424.5272366203. The cubic root of 208066986 is about 592.5628112656.

The spelling of 208066986 in words is "two hundred eight million, sixty-six thousand, nine hundred eighty-six".