208864874 has 4 divisors (see below), whose sum is σ = 313297314. Its totient is φ = 104432436.

The previous prime is 208864847. The next prime is 208864883. The reversal of 208864874 is 478468802.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 183412849 + 25452025 = 13543^2 + 5045^2 .

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 as a sum of consecutive naturals, namely, 52216217 + ... + 52216220.

Almost surely, 2^208864874 is an apocalyptic number.

208864874 is a deficient number, since it is larger than the sum of its proper divisors (104432440).

208864874 is a wasteful number, since it uses less digits than its factorization.

208864874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104432439.

The product of its (nonzero) digits is 688128, while the sum is 47.

The square root of 208864874 is about 14452.1581087393. The cubic root of 208864874 is about 593.3192914939.

The spelling of 208864874 in words is "two hundred eight million, eight hundred sixty-four thousand, eight hundred seventy-four".