85820208 has 40 divisors (see below), whose sum is σ = 224204400. Its totient is φ = 28283904.

The previous prime is 85820201. The next prime is 85820209. The reversal of 85820208 is 80202858.

It is not an unprimeable number, because it can be changed into a prime (85820201) 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 7 ways as a sum of consecutive naturals, for example, 5773 + ... + 14316.

It is an arithmetic number, because the mean of its divisors is an integer number (5605110).

Almost surely, 2^85820208 is an apocalyptic number.

It is an amenable number.

85820208 is an abundant number, since it is smaller than the sum of its proper divisors (138384192).

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

85820208 is a wasteful number, since it uses less digits than its factorization.

85820208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20189 (or 20183 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 85820208 is about 9263.9196887711. The cubic root of 85820208 is about 441.0926836628.

The spelling of 85820208 in words is "eighty-five million, eight hundred twenty thousand, two hundred eight".