85778112 has 56 divisors (see below), whose sum is σ = 259380736. Its totient is φ = 24507648.

The previous prime is 85778101. The next prime is 85778113. The reversal of 85778112 is 21187758.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (85778113) 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 in 7 ways as a sum of consecutive naturals, for example, 30568 + ... + 33255.

Almost surely, 2^85778112 is an apocalyptic number.

It is an amenable number.

85778112 is an abundant number, since it is smaller than the sum of its proper divisors (173602624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85778112 is a wasteful number, since it uses less digits than its factorization.

85778112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63845 (or 63835 counting only the distinct ones).

The product of its digits is 31360, while the sum is 39.

The square root of 85778112 is about 9261.6473696638. The cubic root of 85778112 is about 441.0205511785.

The spelling of 85778112 in words is "eighty-five million, seven hundred seventy-eight thousand, one hundred twelve".