85210728 has 16 divisors (see below), whose sum is σ = 213026880. Its totient is φ = 28403568.

The previous prime is 85210711. The next prime is 85210733. The reversal of 85210728 is 82701258.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 11.

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, 1775200 + ... + 1775247.

It is an arithmetic number, because the mean of its divisors is an integer number (13314180).

Almost surely, 2^85210728 is an apocalyptic number.

It is an amenable number.

85210728 is an abundant number, since it is smaller than the sum of its proper divisors (127816152).

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

85210728 is a wasteful number, since it uses less digits than its factorization.

85210728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3550456 (or 3550452 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 85210728 is about 9230.9657132935. The cubic root of 85210728 is about 440.0460144715.

The spelling of 85210728 in words is "eighty-five million, two hundred ten thousand, seven hundred twenty-eight".