98789898787 has 4 divisors (see below), whose sum is σ = 98864797680. Its totient is φ = 98714999896.

The previous prime is 98789898763. The next prime is 98789898797. The reversal of 98789898787 is 78789898789.

98789898787 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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-98789898787 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 98789898698 and 98789898707.

It is not an unprimeable number, because it can be changed into a prime (98789898797) 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, 37447468 + ... + 37450105.

It is an arithmetic number, because the mean of its divisors is an integer number (24716199420).

Almost surely, 2^98789898787 is an apocalyptic number.

98789898787 is a deficient number, since it is larger than the sum of its proper divisors (74898893).

98789898787 is a wasteful number, since it uses less digits than its factorization.

98789898787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74898892.

The product of its digits is 8193540096, while the sum is 88.

The spelling of 98789898787 in words is "ninety-eight billion, seven hundred eighty-nine million, eight hundred ninety-eight thousand, seven hundred eighty-seven".