998125 has 10 divisors (see below), whose sum is σ = 1248038. Its totient is φ = 798000.

The previous prime is 998117. The next prime is 998147. The reversal of 998125 is 521899.

It can be written as a sum of positive squares in 5 ways, for example, as 550564 + 447561 = 742^2 + 669^2 .

It is not a de Polignac number, because 998125 - 2³ = 998117 is a prime.

It is a Duffinian number.

998125 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 174 + ... + 1423.

2⁹⁹⁸¹²⁵ is an apocalyptic number.

It is an amenable number.

998125 is a deficient number, since it is larger than the sum of its proper divisors (249913).

998125 is an equidigital number, since it uses as much as digits as its factorization.

998125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617 (or 1602 counting only the distinct ones).

The product of its digits is 6480, while the sum is 34.

The square root of 998125 is about 999.0620601344. The cubic root of 998125 is about 99.9374608968.

It can be divided in two parts, 998 and 125, that multiplied together give a triangular number (124750 = T₄₉₉).

The spelling of 998125 in words is "nine hundred ninety-eight thousand, one hundred twenty-five".