85808133 has 8 divisors (see below), whose sum is σ = 127123200. Its totient is φ = 57205404.

The previous prime is 85808119. The next prime is 85808137. The reversal of 85808133 is 33180858.

It is a happy number.

It is not a de Polignac number, because 85808133 - 2⁴ = 85808117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85808137) 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, 1589013 + ... + 1589066.

It is an arithmetic number, because the mean of its divisors is an integer number (15890400).

Almost surely, 2^85808133 is an apocalyptic number.

It is an amenable number.

85808133 is a deficient number, since it is larger than the sum of its proper divisors (41315067).

85808133 is a wasteful number, since it uses less digits than its factorization.

85808133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178088 (or 3178082 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 85808133 is about 9263.2679438738. The cubic root of 85808133 is about 441.0719952799.

The spelling of 85808133 in words is "eighty-five million, eight hundred eight thousand, one hundred thirty-three".