85728124 has 12 divisors (see below), whose sum is σ = 150348744. Its totient is φ = 42771344.

The previous prime is 85728101. The next prime is 85728131. The reversal of 85728124 is 42182758.

It is a super-2 number, since 2×85728124² = 14698622489118752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21079 + ... + 24814.

It is an arithmetic number, because the mean of its divisors is an integer number (12529062).

Almost surely, 2^85728124 is an apocalyptic number.

It is an amenable number.

85728124 is a deficient number, since it is larger than the sum of its proper divisors (64620620).

85728124 is a wasteful number, since it uses less digits than its factorization.

85728124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46364 (or 46362 counting only the distinct ones).

The product of its digits is 35840, while the sum is 37.

The square root of 85728124 is about 9258.9483204087. The cubic root of 85728124 is about 440.9348649094.

The spelling of 85728124 in words is "eighty-five million, seven hundred twenty-eight thousand, one hundred twenty-four".