904098 has 32 divisors (see below), whose sum is σ = 1987776. Its totient is φ = 272448.

The previous prime is 904097. The next prime is 904103. The reversal of 904098 is 890409.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (904093) 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 15 ways as a sum of consecutive naturals, for example, 5140 + ... + 5312.

It is an arithmetic number, because the mean of its divisors is an integer number (62118).

2⁹⁰⁴⁰⁹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 904098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (993888).

904098 is an abundant number, since it is smaller than the sum of its proper divisors (1083678).

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

904098 is a wasteful number, since it uses less digits than its factorization.

904098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 904098 is about 950.8406806611. The cubic root of 904098 is about 96.6952564398.

Subtracting from 904098 its reverse (890409), we obtain a square (13689 = 117²).

The spelling of 904098 in words is "nine hundred four thousand, ninety-eight".