298321 has 4 divisors (see below), whose sum is σ = 299700. Its totient is φ = 296944.

The previous prime is 298307. The next prime is 298327. The reversal of 298321 is 123892.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11025 + 287296 = 105^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 298321 - 2⁹ = 297809 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (298327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286 + ... + 823.

It is an arithmetic number, because the mean of its divisors is an integer number (74925).

2²⁹⁸³²¹ is an apocalyptic number.

It is an amenable number.

298321 is a deficient number, since it is larger than the sum of its proper divisors (1379).

298321 is a wasteful number, since it uses less digits than its factorization.

298321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378.

The product of its digits is 864, while the sum is 25.

The square root of 298321 is about 546.1876966758. The cubic root of 298321 is about 66.8181748626.

The spelling of 298321 in words is "two hundred ninety-eight thousand, three hundred twenty-one".