85918711 has 4 divisors (see below), whose sum is σ = 85973400. Its totient is φ = 85864024.

The previous prime is 85918673. The next prime is 85918717. The reversal of 85918711 is 11781958.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11781958 = 2 ⋅5890979.

It is a cyclic number.

It is not a de Polignac number, because 85918711 - 2¹³ = 85910519 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85918717) 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, 24916 + ... + 28153.

It is an arithmetic number, because the mean of its divisors is an integer number (21493350).

Almost surely, 2^85918711 is an apocalyptic number.

85918711 is a deficient number, since it is larger than the sum of its proper divisors (54689).

85918711 is a wasteful number, since it uses less digits than its factorization.

85918711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54688.

The product of its digits is 20160, while the sum is 40.

The square root of 85918711 is about 9269.2346501747. The cubic root of 85918711 is about 441.2613787402.

The spelling of 85918711 in words is "eighty-five million, nine hundred eighteen thousand, seven hundred eleven".