85445928 has 40 divisors (see below), whose sum is σ = 239329530. Its totient is φ = 28481760.

The previous prime is 85445903. The next prime is 85445939. The reversal of 85445928 is 82954458.

85445928 is a `hidden beast` number, since 8 + 54 + 4 + 592 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 84603204 + 842724 = 9198^2 + 918^2 .

It is a super-3 number, since 3×85445928³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 65283 + ... + 66578.

Almost surely, 2^85445928 is an apocalyptic number.

It is an amenable number.

85445928 is an abundant number, since it is smaller than the sum of its proper divisors (153883602).

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

85445928 is a wasteful number, since it uses less digits than its factorization.

85445928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131879 (or 131866 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 85445928 is about 9243.6966631321. The cubic root of 85445928 is about 440.4505165196.

The spelling of 85445928 in words is "eighty-five million, four hundred forty-five thousand, nine hundred twenty-eight".