998169608 has 8 divisors (see below), whose sum is σ = 1871568030. Its totient is φ = 499084800.

The previous prime is 998169563. The next prime is 998169619. The reversal of 998169608 is 806961899.

It can be written as a sum of positive squares in only one way, i.e., 900120004 + 98049604 = 30002^2 + 9902^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 62385593 + ... + 62385608.

Almost surely, 2^998169608 is an apocalyptic number.

It is an amenable number.

998169608 is a deficient number, since it is larger than the sum of its proper divisors (873398422).

998169608 is a wasteful number, since it uses less digits than its factorization.

998169608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124771207 (or 124771203 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 56.

The square root of 998169608 is about 31593.8223075335. The cubic root of 998169608 is about 999.3894966949.

The spelling of 998169608 in words is "nine hundred ninety-eight million, one hundred sixty-nine thousand, six hundred eight".