85956887 has 4 divisors (see below), whose sum is σ = 85989456. Its totient is φ = 85924320.

The previous prime is 85956881. The next prime is 85956889. The reversal of 85956887 is 78865958.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85956887 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 11939 + ... + 17732.

It is an arithmetic number, because the mean of its divisors is an integer number (21497364).

Almost surely, 2^85956887 is an apocalyptic number.

85956887 is a deficient number, since it is larger than the sum of its proper divisors (32569).

85956887 is a wasteful number, since it uses less digits than its factorization.

85956887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32568.

The product of its digits is 4838400, while the sum is 56.

The square root of 85956887 is about 9271.2937069214. The cubic root of 85956887 is about 441.3267238392.

The spelling of 85956887 in words is "eighty-five million, nine hundred fifty-six thousand, eight hundred eighty-seven".