85023128 has 16 divisors (see below), whose sum is σ = 164916000. Its totient is φ = 41045536.

The previous prime is 85023109. The next prime is 85023143. The reversal of 85023128 is 82132058.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 85023128.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 183008 + ... + 183471.

It is an arithmetic number, because the mean of its divisors is an integer number (10307250).

Almost surely, 2^85023128 is an apocalyptic number.

It is an amenable number.

85023128 is a deficient number, since it is larger than the sum of its proper divisors (79892872).

85023128 is a wasteful number, since it uses less digits than its factorization.

85023128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366514 (or 366510 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 85023128 is about 9220.7986638902. The cubic root of 85023128 is about 439.7228419825.

The spelling of 85023128 in words is "eighty-five million, twenty-three thousand, one hundred twenty-eight".