85847885 has 4 divisors (see below), whose sum is σ = 103017468. Its totient is φ = 68678304.

The previous prime is 85847857. The next prime is 85847893. The reversal of 85847885 is 58874858.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46635241 + 39212644 = 6829^2 + 6262^2 .

It is a cyclic number.

It is not a de Polignac number, because 85847885 - 2¹⁸ = 85585741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8584784 + ... + 8584793.

It is an arithmetic number, because the mean of its divisors is an integer number (25754367).

Almost surely, 2^85847885 is an apocalyptic number.

It is an amenable number.

85847885 is a deficient number, since it is larger than the sum of its proper divisors (17169583).

85847885 is a wasteful number, since it uses less digits than its factorization.

85847885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17169582.

The product of its digits is 2867200, while the sum is 53.

The square root of 85847885 is about 9265.4133744804. The cubic root of 85847885 is about 441.1400960006.

The spelling of 85847885 in words is "eighty-five million, eight hundred forty-seven thousand, eight hundred eighty-five".