869652520 has 64 divisors (see below), whose sum is σ = 2153615040. Its totient is φ = 313420800.

The previous prime is 869652499. The next prime is 869652529. The reversal of 869652520 is 25256968.

869652520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (869652529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40975 + ... + 58465.

It is an arithmetic number, because the mean of its divisors is an integer number (33650235).

Almost surely, 2^869652520 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 869652520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1076807520).

869652520 is an abundant number, since it is smaller than the sum of its proper divisors (1283962520).

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

869652520 is a wasteful number, since it uses less digits than its factorization.

869652520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17626 (or 17622 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 869652520 is about 29489.8714815782. The cubic root of 869652520 is about 954.5131588386.

It can be divided in two parts, 8696 and 52520, that added together give a palindrome (61216).

The spelling of 869652520 in words is "eight hundred sixty-nine million, six hundred fifty-two thousand, five hundred twenty".