208195804 has 12 divisors (see below), whose sum is σ = 385774704. Its totient is φ = 97974464.

The previous prime is 208195739. The next prime is 208195817. The reversal of 208195804 is 408591802.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1530784 + ... + 1530919.

It is an arithmetic number, because the mean of its divisors is an integer number (32147892).

Almost surely, 2^208195804 is an apocalyptic number.

It is an amenable number.

208195804 is a deficient number, since it is larger than the sum of its proper divisors (177578900).

208195804 is a wasteful number, since it uses less digits than its factorization.

208195804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061724 (or 3061722 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 208195804 is about 14428.9917873703. The cubic root of 208195804 is about 592.6850747893.

The spelling of 208195804 in words is "two hundred eight million, one hundred ninety-five thousand, eight hundred four".