208313856 has 100 divisors (see below), whose sum is σ = 621885792. Its totient is φ = 69424128.

The previous prime is 208313851. The next prime is 208313863. The reversal of 208313856 is 658313802.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 208313856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208313851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 38961 + ... + 43983.

Almost surely, 2^208313856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208313856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310942896).

208313856 is an abundant number, since it is smaller than the sum of its proper divisors (413571936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208313856 is an frugal number, since it uses more digits than its factorization.

208313856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053 (or 5028 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 208313856 is about 14433.0819993514. The cubic root of 208313856 is about 592.7970758268.

The spelling of 208313856 in words is "two hundred eight million, three hundred thirteen thousand, eight hundred fifty-six".