869862 has 32 divisors (see below), whose sum is σ = 2016000. Its totient is φ = 245088.

The previous prime is 869849. The next prime is 869863. The reversal of 869862 is 268968.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 869862.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869862.

It is not an unprimeable number, because it can be changed into a prime (869863) 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 15 ways as a sum of consecutive naturals, for example, 5764 + ... + 5912.

It is an arithmetic number, because the mean of its divisors is an integer number (63000).

2⁸⁶⁹⁸⁶² is an apocalyptic number.

869862 is an abundant number, since it is smaller than the sum of its proper divisors (1146138).

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

869862 is a wasteful number, since it uses less digits than its factorization.

869862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its digits is 41472, while the sum is 39.

The square root of 869862 is about 932.6639266102. The cubic root of 869862 is about 95.4589793034.

The spelling of 869862 in words is "eight hundred sixty-nine thousand, eight hundred sixty-two".