868422 has 8 divisors (see below), whose sum is σ = 1736856. Its totient is φ = 289472.

The previous prime is 868409. The next prime is 868423. The reversal of 868422 is 224868.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

868422 is an admirable number.

It is a d-powerful number, because it can be written as 8² + 6 + 4⁷ + 8⁶ + 2¹⁶ + 2¹⁹ .

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 868422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868423) by changing a digit.

868422 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 (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72363 + ... + 72374.

It is an arithmetic number, because the mean of its divisors is an integer number (217107).

2⁸⁶⁸⁴²² is an apocalyptic number.

868422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

868422 is a wasteful number, since it uses less digits than its factorization.

868422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144742.

The product of its digits is 6144, while the sum is 30.

The square root of 868422 is about 931.8916246002. The cubic root of 868422 is about 95.4062748313.

The spelling of 868422 in words is "eight hundred sixty-eight thousand, four hundred twenty-two".