85281992 has 32 divisors (see below), whose sum is σ = 165688320. Its totient is φ = 41109120.

The previous prime is 85281991. The next prime is 85282007. The reversal of 85281992 is 29918258.

It is not an unprimeable number, because it can be changed into a prime (85281991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90548 + ... + 91484.

It is an arithmetic number, because the mean of its divisors is an integer number (5177760).

Almost surely, 2^85281992 is an apocalyptic number.

It is an amenable number.

85281992 is a deficient number, since it is larger than the sum of its proper divisors (80406328).

85281992 is a wasteful number, since it uses less digits than its factorization.

85281992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341 (or 1337 counting only the distinct ones).

The product of its digits is 103680, while the sum is 44.

The square root of 85281992 is about 9234.8249577347. The cubic root of 85281992 is about 440.1686543539.

The spelling of 85281992 in words is "eighty-five million, two hundred eighty-one thousand, nine hundred ninety-two".