85777312 has 12 divisors (see below), whose sum is σ = 168874146. Its totient is φ = 42888640.

The previous prime is 85777253. The next prime is 85777313. The reversal of 85777312 is 21377758.

It can be written as a sum of positive squares in only one way, i.e., 54819216 + 30958096 = 7404^2 + 5564^2 .

It is not an unprimeable number, because it can be changed into a prime (85777313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340239 + ... + 1340302.

Almost surely, 2^85777312 is an apocalyptic number.

It is an amenable number.

85777312 is a deficient number, since it is larger than the sum of its proper divisors (83096834).

85777312 is a wasteful number, since it uses less digits than its factorization.

85777312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680551 (or 2680543 counting only the distinct ones).

The product of its digits is 82320, while the sum is 40.

The square root of 85777312 is about 9261.6041807022. The cubic root of 85777312 is about 441.0191801312.

The spelling of 85777312 in words is "eighty-five million, seven hundred seventy-seven thousand, three hundred twelve".