898321 has 4 divisors (see below), whose sum is σ = 904500. Its totient is φ = 892144.

The previous prime is 898319. The next prime is 898327. The reversal of 898321 is 123898.

898321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123898 = 2 ⋅61949.

It can be written as a sum of positive squares in 2 ways, for example, as 490000 + 408321 = 700^2 + 639^2 .

It is a cyclic number.

It is not a de Polignac number, because 898321 - 2¹ = 898319 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (898327) 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, 2866 + ... + 3163.

It is an arithmetic number, because the mean of its divisors is an integer number (226125).

2⁸⁹⁸³²¹ is an apocalyptic number.

It is an amenable number.

898321 is a deficient number, since it is larger than the sum of its proper divisors (6179).

898321 is a wasteful number, since it uses less digits than its factorization.

898321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6178.

The product of its digits is 3456, while the sum is 31.

The square root of 898321 is about 947.7979742540. The cubic root of 898321 is about 96.4888619502.

The spelling of 898321 in words is "eight hundred ninety-eight thousand, three hundred twenty-one".