208855801 has 48 divisors (see below), whose sum is σ = 279465984. Its totient is φ = 152460000.

The previous prime is 208855799. The next prime is 208855813. The reversal of 208855801 is 108558802.

It is not a de Polignac number, because 208855801 - 2¹ = 208855799 is a prime.

It is a super-2 number, since 2×208855801² = 87241491222703202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208855831) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1383076 + ... + 1383226.

It is an arithmetic number, because the mean of its divisors is an integer number (5822208).

Almost surely, 2^208855801 is an apocalyptic number.

It is an amenable number.

208855801 is a deficient number, since it is larger than the sum of its proper divisors (70610183).

208855801 is a wasteful number, since it uses less digits than its factorization.

208855801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 208855801 is about 14451.8442075743. The cubic root of 208855801 is about 593.3107001915.

The spelling of 208855801 in words is "two hundred eight million, eight hundred fifty-five thousand, eight hundred one".