869928528 has 160 divisors (see below), whose sum is σ = 2767283200. Its totient is φ = 229920768.

The previous prime is 869928523. The next prime is 869928533. The reversal of 869928528 is 825829968.

It is an interprime number because it is at equal distance from previous prime (869928523) and next prime (869928533).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869928523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272928 + ... + 276096.

It is an arithmetic number, because the mean of its divisors is an integer number (17295520).

Almost surely, 2^869928528 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 869928528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1383641600).

869928528 is an abundant number, since it is smaller than the sum of its proper divisors (1897354672).

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

869928528 is a wasteful number, since it uses less digits than its factorization.

869928528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3249 (or 3243 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 57.

The square root of 869928528 is about 29494.5508187529. The cubic root of 869928528 is about 954.6141284387.

The spelling of 869928528 in words is "eight hundred sixty-nine million, nine hundred twenty-eight thousand, five hundred twenty-eight".