85777227 has 6 divisors (see below), whose sum is σ = 123900452. Its totient is φ = 57184812.

The previous prime is 85777199. The next prime is 85777231. The reversal of 85777227 is 72277758.

It is a happy number.

85777227 is a `hidden beast` number, since 8 + 577 + 72 + 2 + 7 = 666.

It is not a de Polignac number, because 85777227 - 2¹² = 85773131 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (85777247) 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, 4765393 + ... + 4765410.

Almost surely, 2^85777227 is an apocalyptic number.

85777227 is a deficient number, since it is larger than the sum of its proper divisors (38123225).

85777227 is a wasteful number, since it uses less digits than its factorization.

85777227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9530809 (or 9530806 counting only the distinct ones).

The product of its digits is 384160, while the sum is 45.

The square root of 85777227 is about 9261.5995918632. The cubic root of 85777227 is about 441.0190344569.

The spelling of 85777227 in words is "eighty-five million, seven hundred seventy-seven thousand, two hundred twenty-seven".