863922 has 16 divisors (see below), whose sum is σ = 1742112. Its totient is φ = 285600.

The previous prime is 863921. The next prime is 863959. The reversal of 863922 is 229368.

It is a super-2 number, since 2×863922² = 1492722444168, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8³ + 6⁷ + 9 + 3¹⁰ + 2⁷ + 2¹⁹ .

It is a self number, because there is not a number n which added to its sum of digits gives 863922.

It is not an unprimeable number, because it can be changed into a prime (863921) 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 7 ways as a sum of consecutive naturals, for example, 297 + ... + 1347.

It is an arithmetic number, because the mean of its divisors is an integer number (108882).

2⁸⁶³⁹²² is an apocalyptic number.

863922 is an abundant number, since it is smaller than the sum of its proper divisors (878190).

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

863922 is a wasteful number, since it uses less digits than its factorization.

863922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193.

The product of its digits is 5184, while the sum is 30.

The square root of 863922 is about 929.4740448232. The cubic root of 863922 is about 95.2411968910.

The spelling of 863922 in words is "eight hundred sixty-three thousand, nine hundred twenty-two".