98781568 has 32 divisors (see below), whose sum is σ = 197676000. Its totient is φ = 49168896.

The previous prime is 98781563. The next prime is 98781583. The reversal of 98781568 is 86518789.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98781563) 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 in 3 ways as a sum of consecutive naturals, for example, 28978 + ... + 32206.

It is an arithmetic number, because the mean of its divisors is an integer number (6177375).

Almost surely, 2^98781568 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 98781568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98838000).

98781568 is an abundant number, since it is smaller than the sum of its proper divisors (98894432).

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

98781568 is a wasteful number, since it uses less digits than its factorization.

98781568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482 (or 3470 counting only the distinct ones).

The product of its digits is 967680, while the sum is 52.

The square root of 98781568 is about 9938.8916887146. The cubic root of 98781568 is about 462.2660212167.

The spelling of 98781568 in words is "ninety-eight million, seven hundred eighty-one thousand, five hundred sixty-eight".