85537806 has 16 divisors (see below), whose sum is σ = 171570000. Its totient is φ = 28430208.

The previous prime is 85537789. The next prime is 85537807. The reversal of 85537806 is 60873558.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85537807) 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, 18331 + ... + 22518.

It is an arithmetic number, because the mean of its divisors is an integer number (10723125).

Almost surely, 2^85537806 is an apocalyptic number.

85537806 is an abundant number, since it is smaller than the sum of its proper divisors (86032194).

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

85537806 is a wasteful number, since it uses less digits than its factorization.

85537806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41203.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 85537806 is about 9248.6650928661. The cubic root of 85537806 is about 440.6083286686.

The spelling of 85537806 in words is "eighty-five million, five hundred thirty-seven thousand, eight hundred six".