869599668 has 96 divisors (see below), whose sum is σ = 2424441600. Its totient is φ = 242350080.

The previous prime is 869599667. The next prime is 869599669. The reversal of 869599668 is 866995968.

869599668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (869599667) and next prime (869599669).

It is a junction number, because it is equal to n+sod(n) for n = 869599599 and 869599608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869599667) 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, 166180 + ... + 171332.

It is an arithmetic number, because the mean of its divisors is an integer number (25254600).

Almost surely, 2^869599668 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 869599668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1212220800).

869599668 is an abundant number, since it is smaller than the sum of its proper divisors (1554841932).

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

869599668 is a wasteful number, since it uses less digits than its factorization.

869599668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5222 (or 5206 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 66.

The square root of 869599668 is about 29488.9753636846. The cubic root of 869599668 is about 954.4938220153.

The spelling of 869599668 in words is "eight hundred sixty-nine million, five hundred ninety-nine thousand, six hundred sixty-eight".