898404 has 36 divisors (see below), whose sum is σ = 2275056. Its totient is φ = 275808.

The previous prime is 898369. The next prime is 898409. The reversal of 898404 is 404898.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 898404.

It is not an unprimeable number, because it can be changed into a prime (898409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1807 + ... + 2249.

It is an arithmetic number, because the mean of its divisors is an integer number (63196).

2⁸⁹⁸⁴⁰⁴ is an apocalyptic number.

898404 is the 507-th nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 898404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1137528).

898404 is an abundant number, since it is smaller than the sum of its proper divisors (1376652).

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

898404 is a wasteful number, since it uses less digits than its factorization.

898404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 898404 is about 947.8417589450. The cubic root of 898404 is about 96.4918335416.

The spelling of 898404 in words is "eight hundred ninety-eight thousand, four hundred four".