90498 has 8 divisors (see below), whose sum is σ = 181008. Its totient is φ = 30164.

The previous prime is 90481. The next prime is 90499. The reversal of 90498 is 89409.

It is a sphenic number, since it is the product of 3 distinct primes.

90498 is an admirable number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (90499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7536 + ... + 7547.

It is an arithmetic number, because the mean of its divisors is an integer number (22626).

2⁹⁰⁴⁹⁸ is an apocalyptic number.

90498 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90504).

90498 is a wasteful number, since it uses less digits than its factorization.

90498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15088.

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

The square root of 90498 is about 300.8288549990. The cubic root of 90498 is about 44.8965524971.

Subtracting from 90498 its reverse (89409), we obtain a square (1089 = 33²).

The spelling of 90498 in words is "ninety thousand, four hundred ninety-eight".