998245 has 8 divisors (see below), whose sum is σ = 1226016. Its totient is φ = 779856.

The previous prime is 998243. The next prime is 998273. The reversal of 998245 is 542899.

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

It is a cyclic number.

It is not a de Polignac number, because 998245 - 2¹ = 998243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2107 + ... + 2536.

It is an arithmetic number, because the mean of its divisors is an integer number (153252).

2⁹⁹⁸²⁴⁵ is an apocalyptic number.

It is an amenable number.

998245 is a deficient number, since it is larger than the sum of its proper divisors (227771).

998245 is a wasteful number, since it uses less digits than its factorization.

998245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691.

The product of its digits is 25920, while the sum is 37.

The square root of 998245 is about 999.1221146587. The cubic root of 998245 is about 99.9414657441.

The spelling of 998245 in words is "nine hundred ninety-eight thousand, two hundred forty-five".