998492672 has 20 divisors (see below), whose sum is σ = 1995036186. Its totient is φ = 499246080.

The previous prime is 998492597. The next prime is 998492687. The reversal of 998492672 is 276294899.

It can be written as a sum of positive squares in only one way, i.e., 972441856 + 26050816 = 31184^2 + 5104^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974579 + ... + 975602.

Almost surely, 2^998492672 is an apocalyptic number.

It is an amenable number.

998492672 is a deficient number, since it is larger than the sum of its proper divisors (996543514).

998492672 is an equidigital number, since it uses as much as digits as its factorization.

998492672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950199 (or 1950183 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 56.

The square root of 998492672 is about 31598.9346655864. The cubic root of 998492672 is about 999.4973046731.

The spelling of 998492672 in words is "nine hundred ninety-eight million, four hundred ninety-two thousand, six hundred seventy-two".