287322 has 16 divisors (see below), whose sum is σ = 656832. Its totient is φ = 82080.

The previous prime is 287321. The next prime is 287327. The reversal of 287322 is 223782.

It is a d-powerful number, because it can be written as 2⁵ + 8⁴ + 3⁹ + 7³ + 2¹⁰ + 2¹⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 287292 and 287301.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 287322.

It is not an unprimeable number, because it can be changed into a prime (287321) 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, 3379 + ... + 3462.

It is an arithmetic number, because the mean of its divisors is an integer number (41052).

2²⁸⁷³²² is an apocalyptic number.

287322 is an abundant number, since it is smaller than the sum of its proper divisors (369510).

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

287322 is a wasteful number, since it uses less digits than its factorization.

287322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853.

The product of its digits is 1344, while the sum is 24.

The square root of 287322 is about 536.0242531826. The cubic root of 287322 is about 65.9866823450.

The spelling of 287322 in words is "two hundred eighty-seven thousand, three hundred twenty-two".