98498999 has 4 divisors (see below), whose sum is σ = 98847336. Its totient is φ = 98150664.

The previous prime is 98498989. The next prime is 98499001. The reversal of 98498999 is 99989489.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98498999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98498929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173744 + ... + 174309.

It is an arithmetic number, because the mean of its divisors is an integer number (24711834).

Almost surely, 2^98498999 is an apocalyptic number.

98498999 is a deficient number, since it is larger than the sum of its proper divisors (348337).

98498999 is a wasteful number, since it uses less digits than its factorization.

98498999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348336.

The product of its digits is 15116544, while the sum is 65.

The square root of 98498999 is about 9924.6661908600. Note that the first 3 decimals coincide. The cubic root of 98498999 is about 461.8248228624.

The spelling of 98498999 in words is "ninety-eight million, four hundred ninety-eight thousand, nine hundred ninety-nine".