85927811 has 4 divisors (see below), whose sum is σ = 85950000. Its totient is φ = 85905624.

The previous prime is 85927771. The next prime is 85927847. The reversal of 85927811 is 11872958.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11872958 = 2 ⋅5936479.

It is a cyclic number.

It is not a de Polignac number, because 85927811 - 2¹⁸ = 85665667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85927211) 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, 3596 + ... + 13593.

It is an arithmetic number, because the mean of its divisors is an integer number (21487500).

Almost surely, 2^85927811 is an apocalyptic number.

85927811 is a deficient number, since it is larger than the sum of its proper divisors (22189).

85927811 is a wasteful number, since it uses less digits than its factorization.

85927811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22188.

The product of its digits is 40320, while the sum is 41.

The square root of 85927811 is about 9269.7255083417. The cubic root of 85927811 is about 441.2769567858.

The spelling of 85927811 in words is "eighty-five million, nine hundred twenty-seven thousand, eight hundred eleven".