98989018 has 4 divisors (see below), whose sum is σ = 148483530. Its totient is φ = 49494508.

The previous prime is 98988991. The next prime is 98989019. The reversal of 98989018 is 81098989.

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., 75047569 + 23941449 = 8663^2 + 4893^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (98989019) by changing a digit.

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, 24747253 + ... + 24747256.

Almost surely, 2^98989018 is an apocalyptic number.

98989018 is a deficient number, since it is larger than the sum of its proper divisors (49494512).

98989018 is a wasteful number, since it uses less digits than its factorization.

98989018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49494511.

The product of its (nonzero) digits is 373248, while the sum is 52.

The square root of 98989018 is about 9949.3224894965. The cubic root of 98989018 is about 462.5893947484.

The spelling of 98989018 in words is "ninety-eight million, nine hundred eighty-nine thousand, eighteen".