85474728 has 48 divisors (see below), whose sum is σ = 234299520. Its totient is φ = 28146336.

The previous prime is 85474681. The next prime is 85474729. The reversal of 85474728 is 82747458.

It is not an unprimeable number, because it can be changed into a prime (85474729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1176 + ... + 13127.

It is an arithmetic number, because the mean of its divisors is an integer number (4881240).

Almost surely, 2^85474728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85474728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117149760).

85474728 is an abundant number, since it is smaller than the sum of its proper divisors (148824792).

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

85474728 is a wasteful number, since it uses less digits than its factorization.

85474728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14398 (or 14391 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The square root of 85474728 is about 9245.2543502058. The cubic root of 85474728 is about 440.4999963496.

The spelling of 85474728 in words is "eighty-five million, four hundred seventy-four thousand, seven hundred twenty-eight".