208528801 has 16 divisors (see below), whose sum is σ = 234710784. Its totient is φ = 183988224.

The previous prime is 208528799. The next prime is 208528883. The reversal of 208528801 is 108825802.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 208528801 - 2¹ = 208528799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208522801) 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, 22305 + ... + 30241.

It is an arithmetic number, because the mean of its divisors is an integer number (14669424).

Almost surely, 2^208528801 is an apocalyptic number.

It is an amenable number.

208528801 is a deficient number, since it is larger than the sum of its proper divisors (26181983).

208528801 is a wasteful number, since it uses less digits than its factorization.

208528801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8040.

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 208528801 is about 14440.5263408229. The cubic root of 208528801 is about 593.0008948303. Note that the first 3 decimals are identical.

The spelling of 208528801 in words is "two hundred eight million, five hundred twenty-eight thousand, eight hundred one".