85956885 has 24 divisors (see below), whose sum is σ = 170277120. Its totient is φ = 39294432.

The previous prime is 85956881. The next prime is 85956889. The reversal of 85956885 is 58865958.

It is an interprime number because it is at equal distance from previous prime (85956881) and next prime (85956889).

It is not a de Polignac number, because 85956885 - 2² = 85956881 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85956881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136125 + ... + 136754.

It is an arithmetic number, because the mean of its divisors is an integer number (7094880).

Almost surely, 2^85956885 is an apocalyptic number.

It is an amenable number.

85956885 is a deficient number, since it is larger than the sum of its proper divisors (84320235).

85956885 is a wasteful number, since it uses less digits than its factorization.

85956885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272897 (or 272894 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 54.

The square root of 85956885 is about 9271.2935990616. The cubic root of 85956885 is about 441.3267204163.

The spelling of 85956885 in words is "eighty-five million, nine hundred fifty-six thousand, eight hundred eighty-five".