904398 has 32 divisors (see below), whose sum is σ = 2011392. Its totient is φ = 268800.

The previous prime is 904369. The next prime is 904399. The reversal of 904398 is 893409.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4590 + ... + 4782.

It is an arithmetic number, because the mean of its divisors is an integer number (62856).

2⁹⁰⁴³⁹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 904398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1005696).

904398 is an abundant number, since it is smaller than the sum of its proper divisors (1106994).

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

904398 is a wasteful number, since it uses less digits than its factorization.

904398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 904398 is about 950.9984227116. The cubic root of 904398 is about 96.7059504756.

The spelling of 904398 in words is "nine hundred four thousand, three hundred ninety-eight".