869814 has 48 divisors (see below), whose sum is σ = 2156544. Its totient is φ = 250800.

The previous prime is 869809. The next prime is 869819. The reversal of 869814 is 418968.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (869809) and next prime (869819).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4459 + ... + 4649.

It is an arithmetic number, because the mean of its divisors is an integer number (44928).

2⁸⁶⁹⁸¹⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1078272).

869814 is an abundant number, since it is smaller than the sum of its proper divisors (1286730).

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

869814 is a wasteful number, since it uses less digits than its factorization.

869814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 230 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 869814 is about 932.6381935134. The cubic root of 869814 is about 95.4572234252.

The spelling of 869814 in words is "eight hundred sixty-nine thousand, eight hundred fourteen".