998454 has 8 divisors (see below), whose sum is σ = 1996920. Its totient is φ = 332816.

The previous prime is 998443. The next prime is 998471. The reversal of 998454 is 454899.

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

998454 is an admirable number.

It is a congruent number.

It is an unprimeable number.

998454 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83199 + ... + 83210.

It is an arithmetic number, because the mean of its divisors is an integer number (249615).

2⁹⁹⁸⁴⁵⁴ is an apocalyptic number.

998454 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.

998454 is a wasteful number, since it uses less digits than its factorization.

998454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166414.

The product of its digits is 51840, while the sum is 39.

The square root of 998454 is about 999.2267010043. The cubic root of 998454 is about 99.9484400870.

The spelling of 998454 in words is "nine hundred ninety-eight thousand, four hundred fifty-four".