85885611 has 32 divisors (see below), whose sum is σ = 139926528. Its totient is φ = 45788160.

The previous prime is 85885609. The next prime is 85885627. The reversal of 85885611 is 11658858.

It is a happy number.

It is not a de Polignac number, because 85885611 - 2¹ = 85885609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85885601) 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, 17635 + ... + 21971.

It is an arithmetic number, because the mean of its divisors is an integer number (4372704).

Almost surely, 2^85885611 is an apocalyptic number.

85885611 is a deficient number, since it is larger than the sum of its proper divisors (54040917).

85885611 is a wasteful number, since it uses less digits than its factorization.

85885611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4411.

The product of its digits is 76800, while the sum is 42.

The square root of 85885611 is about 9267.4490017480. The cubic root of 85885611 is about 441.2047064605.

The spelling of 85885611 in words is "eighty-five million, eight hundred eighty-five thousand, six hundred eleven".