864162 has 32 divisors (see below), whose sum is σ = 2069760. Its totient is φ = 265680.

The previous prime is 864151. The next prime is 864167. The reversal of 864162 is 261468.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (864167) by changing a digit.

864162 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 87 + ... + 1317.

It is an arithmetic number, because the mean of its divisors is an integer number (64680).

2⁸⁶⁴¹⁶² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 864162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1034880).

864162 is an abundant number, since it is smaller than the sum of its proper divisors (1205598).

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

864162 is a wasteful number, since it uses less digits than its factorization.

864162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255 (or 1249 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 864162 is about 929.6031411307. The cubic root of 864162 is about 95.2500155000.

The spelling of 864162 in words is "eight hundred sixty-four thousand, one hundred sixty-two".