998541322 has 4 divisors (see below), whose sum is σ = 1497811986. Its totient is φ = 499270660.

The previous prime is 998541319. The next prime is 998541329. The reversal of 998541322 is 223145899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 223145899 = 19 ⋅11744521.

It can be written as a sum of positive squares in only one way, i.e., 998496801 + 44521 = 31599^2 + 211^2 .

It is not an unprimeable number, because it can be changed into a prime (998541329) 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 as a sum of consecutive naturals, namely, 249635329 + ... + 249635332.

Almost surely, 2^998541322 is an apocalyptic number.

998541322 is a deficient number, since it is larger than the sum of its proper divisors (499270664).

998541322 is a wasteful number, since it uses less digits than its factorization.

998541322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499270663.

The product of its digits is 155520, while the sum is 43.

The square root of 998541322 is about 31599.7044606433. The cubic root of 998541322 is about 999.5135373925.

The spelling of 998541322 in words is "nine hundred ninety-eight million, five hundred forty-one thousand, three hundred twenty-two".