898221 has 8 divisors (see below), whose sum is σ = 1214784. Its totient is φ = 590240.

The previous prime is 898213. The next prime is 898223. The reversal of 898221 is 122898.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 898221 - 2³ = 898213 is a prime.

898221 is a lucky number.

It is a plaindrome in base 13.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898223) 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, 1896 + ... + 2321.

It is an arithmetic number, because the mean of its divisors is an integer number (151848).

2⁸⁹⁸²²¹ is an apocalyptic number.

It is an amenable number.

898221 is a deficient number, since it is larger than the sum of its proper divisors (316563).

898221 is a wasteful number, since it uses less digits than its factorization.

898221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291.

The product of its digits is 2304, while the sum is 30.

The square root of 898221 is about 947.7452189275. The cubic root of 898221 is about 96.4852814765.

The spelling of 898221 in words is "eight hundred ninety-eight thousand, two hundred twenty-one".