898381 has 4 divisors (see below), whose sum is σ = 980064. Its totient is φ = 816700.

The previous prime is 898369. The next prime is 898409. The reversal of 898381 is 183898.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 898381 - 2⁷ = 898253 is a prime.

It is a super-2 number, since 2×898381² = 1614176842322, which contains 22 as substring.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 898381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898361) 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, 40825 + ... + 40846.

It is an arithmetic number, because the mean of its divisors is an integer number (245016).

2⁸⁹⁸³⁸¹ is an apocalyptic number.

It is an amenable number.

898381 is a deficient number, since it is larger than the sum of its proper divisors (81683).

898381 is a wasteful number, since it uses less digits than its factorization.

898381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81682.

The product of its digits is 13824, while the sum is 37.

The square root of 898381 is about 947.8296260405. The cubic root of 898381 is about 96.4910101069.

It can be divided in two parts, 8 and 98381, that added together give a palindrome (98389).

The spelling of 898381 in words is "eight hundred ninety-eight thousand, three hundred eighty-one".