998803648 has 14 divisors (see below), whose sum is σ = 1982001116. Its totient is φ = 499401792.

The previous prime is 998803607. The next prime is 998803649. The reversal of 998803648 is 846308899.

It is not an unprimeable number, because it can be changed into a prime (998803649) 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, 7803090 + ... + 7803217.

Almost surely, 2^998803648 is an apocalyptic number.

It is an amenable number.

998803648 is a deficient number, since it is larger than the sum of its proper divisors (983197468).

998803648 is a wasteful number, since it uses less digits than its factorization.

998803648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15606319 (or 15606309 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 998803648 is about 31603.8549547361. The cubic root of 998803648 is about 999.6010568655.

The spelling of 998803648 in words is "nine hundred ninety-eight million, eight hundred three thousand, six hundred forty-eight".