998049 has 16 divisors (see below), whose sum is σ = 1451072. Its totient is φ = 606528.

The previous prime is 998029. The next prime is 998069. The reversal of 998049 is 940899.

It is an interprime number because it is at equal distance from previous prime (998029) and next prime (998069).

It is not a de Polignac number, because 998049 - 2⁵ = 998017 is a prime.

It is a super-2 number, since 2×998049² = 1992203612802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 997998 and 998016.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 998049.

It is not an unprimeable number, because it can be changed into a prime (998009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6042 + ... + 6204.

It is an arithmetic number, because the mean of its divisors is an integer number (90692).

2⁹⁹⁸⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

998049 is a deficient number, since it is larger than the sum of its proper divisors (453023).

998049 is a wasteful number, since it uses less digits than its factorization.

998049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 998049 is about 999.0240237352. The cubic root of 998049 is about 99.9349243274.

The spelling of 998049 in words is "nine hundred ninety-eight thousand, forty-nine".