998546873 has 4 divisors (see below), whose sum is σ = 999877248. Its totient is φ = 997216500.

The previous prime is 998546869. The next prime is 998546917. The reversal of 998546873 is 378645899.

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, and also an emirpimes, since its reverse is a distinct semiprime: 378645899 = 4799 ⋅78901.

It is a cyclic number.

It is not a de Polignac number, because 998546873 - 2² = 998546869 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998536873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664061 + ... + 665562.

It is an arithmetic number, because the mean of its divisors is an integer number (249969312).

Almost surely, 2^998546873 is an apocalyptic number.

It is an amenable number.

998546873 is a deficient number, since it is larger than the sum of its proper divisors (1330375).

998546873 is a wasteful number, since it uses less digits than its factorization.

998546873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330374.

The product of its digits is 13063680, while the sum is 59.

The square root of 998546873 is about 31599.7922936212. The cubic root of 998546873 is about 999.5153895240.

The spelling of 998546873 in words is "nine hundred ninety-eight million, five hundred forty-six thousand, eight hundred seventy-three".