85945587 has 32 divisors (see below), whose sum is σ = 142775808. Its totient is φ = 44775936.

The previous prime is 85945579. The next prime is 85945603. The reversal of 85945587 is 78554958.

It is not a de Polignac number, because 85945587 - 2³ = 85945579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85945537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20763 + ... + 24555.

It is an arithmetic number, because the mean of its divisors is an integer number (4461744).

Almost surely, 2^85945587 is an apocalyptic number.

85945587 is a deficient number, since it is larger than the sum of its proper divisors (56830221).

85945587 is a wasteful number, since it uses less digits than its factorization.

85945587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3899.

The product of its digits is 2016000, while the sum is 51.

The square root of 85945587 is about 9270.6842789516. The cubic root of 85945587 is about 441.3073838704.

The spelling of 85945587 in words is "eighty-five million, nine hundred forty-five thousand, five hundred eighty-seven".