864322 has 4 divisors (see below), whose sum is σ = 1296486. Its totient is φ = 432160.

The previous prime is 864319. The next prime is 864323. The reversal of 864322 is 223468.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 505521 + 358801 = 711^2 + 599^2 .

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (864323) by changing a digit.

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 as a sum of consecutive naturals, namely, 216079 + ... + 216082.

2⁸⁶⁴³²² is an apocalyptic number.

864322 is a deficient number, since it is larger than the sum of its proper divisors (432164).

864322 is a wasteful number, since it uses less digits than its factorization.

864322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432163.

The product of its digits is 2304, while the sum is 25.

The square root of 864322 is about 929.6891953766. The cubic root of 864322 is about 95.2558936656.

The spelling of 864322 in words is "eight hundred sixty-four thousand, three hundred twenty-two".