998073 has 12 divisors (see below), whose sum is σ = 1475760. Its totient is φ = 649656.

The previous prime is 998071. The next prime is 998077. The reversal of 998073 is 370899.

It is not a de Polignac number, because 998073 - 2¹ = 998071 is a prime.

It is a super-2 number, since 2×998073² = 1992299426658, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (998071) 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 11 ways as a sum of consecutive naturals, for example, 903 + ... + 1676.

It is an arithmetic number, because the mean of its divisors is an integer number (122980).

2⁹⁹⁸⁰⁷³ is an apocalyptic number.

It is an amenable number.

998073 is a deficient number, since it is larger than the sum of its proper divisors (477687).

998073 is a wasteful number, since it uses less digits than its factorization.

998073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628 (or 2625 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 998073 is about 999.0360353861. The cubic root of 998073 is about 99.9357253632.

The spelling of 998073 in words is "nine hundred ninety-eight thousand, seventy-three".