85835855 has 32 divisors (see below), whose sum is σ = 120890880. Its totient is φ = 57294720.

The previous prime is 85835851. The next prime is 85835857. The reversal of 85835855 is 55853858.

It is a happy number.

It is not a de Polignac number, because 85835855 - 2² = 85835851 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85835851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 406700 + ... + 406910.

It is an arithmetic number, because the mean of its divisors is an integer number (3777840).

Almost surely, 2^85835855 is an apocalyptic number.

85835855 is a deficient number, since it is larger than the sum of its proper divisors (35055025).

85835855 is a wasteful number, since it uses less digits than its factorization.

85835855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479.

The product of its digits is 960000, while the sum is 47.

The square root of 85835855 is about 9264.7641632154. The cubic root of 85835855 is about 441.1194891514.

The spelling of 85835855 in words is "eighty-five million, eight hundred thirty-five thousand, eight hundred fifty-five".