869969968 has 80 divisors (see below), whose sum is σ = 2045922624. Its totient is φ = 349839360.

The previous prime is 869969923. The next prime is 869969987.

869969968 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 869969897 and 869969906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991546 + ... + 992422.

Almost surely, 2^869969968 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 869969968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1022961312).

869969968 is an abundant number, since it is smaller than the sum of its proper divisors (1175952656).

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

869969968 is a wasteful number, since it uses less digits than its factorization.

869969968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430 (or 1424 counting only the distinct ones).

The product of its digits is 90699264, while the sum is 70.

The square root of 869969968 is about 29495.2533130333. The cubic root of 869969968 is about 954.6292862285.

The spelling of 869969968 in words is "eight hundred sixty-nine million, nine hundred sixty-nine thousand, nine hundred sixty-eight".