98991616 has 80 divisors (see below), whose sum is σ = 209919600. Its totient is φ = 46563328.

The previous prime is 98991583. The next prime is 98991619. The reversal of 98991616 is 61619989.

It is a self number, because there is not a number n which added to its sum of digits gives 98991616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98991619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875976 + ... + 876088.

It is an arithmetic number, because the mean of its divisors is an integer number (2623995).

Almost surely, 2^98991616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98991616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104959800).

98991616 is an abundant number, since it is smaller than the sum of its proper divisors (110927984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98991616 is a wasteful number, since it uses less digits than its factorization.

98991616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 203 counting only the distinct ones).

The product of its digits is 209952, while the sum is 49.

The square root of 98991616 is about 9949.4530502938. The cubic root of 98991616 is about 462.5934416510.

The spelling of 98991616 in words is "ninety-eight million, nine hundred ninety-one thousand, six hundred sixteen".