869000 has 64 divisors (see below), whose sum is σ = 2246400. Its totient is φ = 312000.

The previous prime is 868999. The next prime is 869017. The reversal of 869000 is 968.

It is a super-2 number, since 2×869000² = 1510322000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10961 + ... + 11039.

It is an arithmetic number, because the mean of its divisors is an integer number (35100).

2⁸⁶⁹⁰⁰⁰ 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 869000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1123200).

869000 is an abundant number, since it is smaller than the sum of its proper divisors (1377400).

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

869000 is a wasteful number, since it uses less digits than its factorization.

869000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 869000 is about 932.2016949137. The cubic root of 869000 is about 95.4274368152.

Adding to 869000 its reverse (968), we get a palindrome (869968).

The spelling of 869000 in words is "eight hundred sixty-nine thousand".