65028860 has 48 divisors (see below), whose sum is σ = 149300256. Its totient is φ = 23645952.

The previous prime is 65028853. The next prime is 65028881. The reversal of 65028860 is 6882056.

65028860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 65028860.

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 15 ways as a sum of consecutive naturals, for example, 15554 + ... + 19286.

It is an arithmetic number, because the mean of its divisors is an integer number (3110422).

Almost surely, 2^65028860 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 65028860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74650128).

65028860 is an abundant number, since it is smaller than the sum of its proper divisors (84271396).

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

65028860 is a wasteful number, since it uses less digits than its factorization.

65028860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822 (or 3820 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 65028860 is about 8064.0473708926. The cubic root of 65028860 is about 402.1320737953.

The spelling of 65028860 in words is "sixty-five million, twenty-eight thousand, eight hundred sixty".