85804528 has 20 divisors (see below), whose sum is σ = 171610048. Its totient is φ = 41518080.

The previous prime is 85804501. The next prime is 85804541. The reversal of 85804528 is 82540858.

It is a happy number.

85804528 is an admirable number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 86001 + ... + 86992.

Almost surely, 2^85804528 is an apocalyptic number.

It is an amenable number.

85804528 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

85804528 is a wasteful number, since it uses less digits than its factorization.

85804528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173032 (or 173026 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 40.

The square root of 85804528 is about 9263.0733560736. The cubic root of 85804528 is about 441.0658183720.

The spelling of 85804528 in words is "eighty-five million, eight hundred four thousand, five hundred twenty-eight".