208920573 has 16 divisors (see below), whose sum is σ = 309749440. Its totient is φ = 139173552.

The previous prime is 208920559. The next prime is 208920581. The reversal of 208920573 is 375029802.

It is a happy number.

208920573 is a `hidden beast` number, since 2 + 0 + 89 + 2 + 0 + 573 = 666.

It is not a de Polignac number, because 208920573 - 2⁴ = 208920557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208920533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50190 + ... + 54192.

It is an arithmetic number, because the mean of its divisors is an integer number (19359340).

Almost surely, 2^208920573 is an apocalyptic number.

It is an amenable number.

208920573 is a deficient number, since it is larger than the sum of its proper divisors (100828867).

208920573 is a wasteful number, since it uses less digits than its factorization.

208920573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5945 (or 5939 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 208920573 is about 14454.0849935235. The cubic root of 208920573 is about 593.3720279089.

The spelling of 208920573 in words is "two hundred eight million, nine hundred twenty thousand, five hundred seventy-three".