208589434 has 4 divisors (see below), whose sum is σ = 312884154. Its totient is φ = 104294716.

The previous prime is 208589419. The next prime is 208589441. The reversal of 208589434 is 434985802.

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., 185096025 + 23493409 = 13605^2 + 4847^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52147357 + ... + 52147360.

Almost surely, 2^208589434 is an apocalyptic number.

208589434 is a deficient number, since it is larger than the sum of its proper divisors (104294720).

208589434 is a wasteful number, since it uses less digits than its factorization.

208589434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104294719.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 208589434 is about 14442.6255923222. The cubic root of 208589434 is about 593.0583640125.

It can be divided in two parts, 2085 and 89434, that added together give a palindrome (91519).

The spelling of 208589434 in words is "two hundred eight million, five hundred eighty-nine thousand, four hundred thirty-four".