85771227 has 6 divisors (see below), whose sum is σ = 114383028. Its totient is φ = 57170124.

The previous prime is 85771223. The next prime is 85771237. The reversal of 85771227 is 72217758.

It is not a de Polignac number, because 85771227 - 2² = 85771223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85771223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13368 + ... + 18714.

It is an arithmetic number, because the mean of its divisors is an integer number (19063838).

Almost surely, 2^85771227 is an apocalyptic number.

85771227 is a deficient number, since it is larger than the sum of its proper divisors (28611801).

85771227 is an frugal number, since it uses more digits than its factorization.

85771227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10697 (or 5350 counting only the distinct ones).

The product of its digits is 54880, while the sum is 39.

The square root of 85771227 is about 9261.2756680708. The cubic root of 85771227 is about 441.0087513239.

The spelling of 85771227 in words is "eighty-five million, seven hundred seventy-one thousand, two hundred twenty-seven".