9898987676 has 6 divisors (see below), whose sum is σ = 17323228440. Its totient is φ = 4949493836.

The previous prime is 9898987663. The next prime is 9898987723. The reversal of 9898987676 is 6767898989.

9898987676 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

It is a junction number, because it is equal to n+sod(n) for n = 9898987597 and 9898987606.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1237373456 + ... + 1237373463.

It is an arithmetic number, because the mean of its divisors is an integer number (2887204740).

Almost surely, 2^9898987676 is an apocalyptic number.

It is an amenable number.

9898987676 is a deficient number, since it is larger than the sum of its proper divisors (7424240764).

9898987676 is a wasteful number, since it uses less digits than its factorization.

9898987676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474746923 (or 2474746921 counting only the distinct ones).

The product of its digits is 658409472, while the sum is 77.

The square root of 9898987676 is about 99493.6564611031. The cubic root of 9898987676 is about 2147.1559782541.

The spelling of 9898987676 in words is "nine billion, eight hundred ninety-eight million, nine hundred eighty-seven thousand, six hundred seventy-six".