863320 has 32 divisors (see below), whose sum is σ = 1969920. Its totient is φ = 340480.

The previous prime is 863309. The next prime is 863323. The reversal of 863320 is 23368.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 863291 and 863300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4425 + ... + 4615.

It is an arithmetic number, because the mean of its divisors is an integer number (61560).

2⁸⁶³³²⁰ is an apocalyptic number.

It is an amenable number.

863320 is an abundant number, since it is smaller than the sum of its proper divisors (1106600).

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

863320 is a wasteful number, since it uses less digits than its factorization.

863320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 863320 is about 929.1501493300. The cubic root of 863320 is about 95.2190696916.

Adding to 863320 its reverse (23368), we get a palindrome (886688).

The spelling of 863320 in words is "eight hundred sixty-three thousand, three hundred twenty".