863222 has 4 divisors (see below), whose sum is σ = 1294836. Its totient is φ = 431610.

The previous prime is 863197. The next prime is 863231. The reversal of 863222 is 222368.

It is a semiprime because it is the product of two primes.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

863222 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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215804 + ... + 215807.

It is an arithmetic number, because the mean of its divisors is an integer number (323709).

2⁸⁶³²²² is an apocalyptic number.

863222 is a deficient number, since it is larger than the sum of its proper divisors (431614).

863222 is a wasteful number, since it uses less digits than its factorization.

863222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431613.

The product of its digits is 1152, while the sum is 23.

The square root of 863222 is about 929.0974114699. The cubic root of 863222 is about 95.2154666159.

The spelling of 863222 in words is "eight hundred sixty-three thousand, two hundred twenty-two".