998497322 has 4 divisors (see below), whose sum is σ = 1497745986. Its totient is φ = 499248660.

The previous prime is 998497309. The next prime is 998497333. The reversal of 998497322 is 223794899.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 622951681 + 375545641 = 24959^2 + 19379^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249624329 + ... + 249624332.

Almost surely, 2^998497322 is an apocalyptic number.

998497322 is a deficient number, since it is larger than the sum of its proper divisors (499248664).

998497322 is a wasteful number, since it uses less digits than its factorization.

998497322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499248663.

The product of its digits is 1959552, while the sum is 53.

The square root of 998497322 is about 31599.0082439307. The cubic root of 998497322 is about 999.4988562302.

The spelling of 998497322 in words is "nine hundred ninety-eight million, four hundred ninety-seven thousand, three hundred twenty-two".