998141 has 4 divisors (see below), whose sum is σ = 1001952. Its totient is φ = 994332.

The previous prime is 998117. The next prime is 998147. The reversal of 998141 is 141899.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 998141 - 2⁶ = 998077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 998098 and 998107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998147) 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, 1481 + ... + 2046.

It is an arithmetic number, because the mean of its divisors is an integer number (250488).

2⁹⁹⁸¹⁴¹ is an apocalyptic number.

It is an amenable number.

998141 is a deficient number, since it is larger than the sum of its proper divisors (3811).

998141 is a wasteful number, since it uses less digits than its factorization.

998141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810.

The product of its digits is 2592, while the sum is 32.

The square root of 998141 is about 999.0700676129. The cubic root of 998141 is about 99.9379948949.

The spelling of 998141 in words is "nine hundred ninety-eight thousand, one hundred forty-one".