89404 has 24 divisors (see below), whose sum is σ = 186368. Its totient is φ = 36720.

The previous prime is 89399. The next prime is 89413. The reversal of 89404 is 40498.

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817 + ... + 919.

2⁸⁹⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93184).

89404 is an abundant number, since it is smaller than the sum of its proper divisors (96964).

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

89404 is a wasteful number, since it uses less digits than its factorization.

89404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 89404 is about 299.0050166803. The cubic root of 89404 is about 44.7149054353.

The spelling of 89404 in words is "eighty-nine thousand, four hundred four".