322387 has 4 divisors (see below), whose sum is σ = 347200. Its totient is φ = 297576.

The previous prime is 322351. The next prime is 322397. The reversal of 322387 is 783223.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 322387 - 2¹¹ = 320339 is a prime.

It is a Duffinian number.

322387 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (322327) 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 3 ways as a sum of consecutive naturals, for example, 12387 + ... + 12412.

It is an arithmetic number, because the mean of its divisors is an integer number (86800).

2³²²³⁸⁷ is an apocalyptic number.

322387 is a deficient number, since it is larger than the sum of its proper divisors (24813).

322387 is a wasteful number, since it uses less digits than its factorization.

322387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24812.

The product of its digits is 2016, while the sum is 25.

The square root of 322387 is about 567.7913349110. The cubic root of 322387 is about 68.5686880932.

It can be divided in two parts, 3 and 22387, that multiplied together give a triangular number (67161 = T₃₆₆).

The spelling of 322387 in words is "three hundred twenty-two thousand, three hundred eighty-seven".