869960 has 64 divisors (see below), whose sum is σ = 2419200. Its totient is φ = 274176.

The previous prime is 869959. The next prime is 869983. The reversal of 869960 is 69968.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869960.

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, 3521 + ... + 3759.

It is an arithmetic number, because the mean of its divisors is an integer number (37800).

2⁸⁶⁹⁹⁶⁰ 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 869960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1209600).

869960 is an abundant number, since it is smaller than the sum of its proper divisors (1549240).

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

869960 is a wasteful number, since it uses less digits than its factorization.

869960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 869960 is about 932.7164628117. The cubic root of 869960 is about 95.4625640210.

The spelling of 869960 in words is "eight hundred sixty-nine thousand, nine hundred sixty".