898428 has 12 divisors (see below), whose sum is σ = 2096360. Its totient is φ = 299472.

The previous prime is 898427. The next prime is 898439. The reversal of 898428 is 824898.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 898428.

It is not an unprimeable number, because it can be changed into a prime (898421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37423 + ... + 37446.

2⁸⁹⁸⁴²⁸ is an apocalyptic number.

It is an amenable number.

898428 is an abundant number, since it is smaller than the sum of its proper divisors (1197932).

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

898428 is a wasteful number, since it uses less digits than its factorization.

898428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74876 (or 74874 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 898428 is about 947.8544192016. The cubic root of 898428 is about 96.4926927628.

It can be divided in two parts, 898 and 428, that added together give a triangular number (1326 = T₅₁).

The spelling of 898428 in words is "eight hundred ninety-eight thousand, four hundred twenty-eight".