865310328 has 96 divisors (see below), whose sum is σ = 2409092400. Its totient is φ = 280433664.

The previous prime is 865310321. The next prime is 865310351. The reversal of 865310328 is 823013568.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 865310292 and 865310301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865310321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 857088 + ... + 858096.

Almost surely, 2^865310328 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 865310328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1204546200).

865310328 is an abundant number, since it is smaller than the sum of its proper divisors (1543782072).

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

865310328 is a wasteful number, since it uses less digits than its factorization.

865310328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1334 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 865310328 is about 29416.1576008832. The cubic root of 865310328 is about 952.9218731774.

It can be divided in two parts, 8653 and 10328, that added together give a palindrome (18981).

The spelling of 865310328 in words is "eight hundred sixty-five million, three hundred ten thousand, three hundred twenty-eight".