9898800786 has 48 divisors (see below), whose sum is σ = 24749322624. Its totient is φ = 2800766592.

The previous prime is 9898800763. The next prime is 9898800787. The reversal of 9898800786 is 6870088989.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (9898800787) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 368391 + ... + 394346.

It is an arithmetic number, because the mean of its divisors is an integer number (515610888).

Almost surely, 2^9898800786 is an apocalyptic number.

9898800786 is an abundant number, since it is smaller than the sum of its proper divisors (14850521838).

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

9898800786 is a wasteful number, since it uses less digits than its factorization.

9898800786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762855 (or 762852 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 63.

The square root of 9898800786 is about 99492.7172510632. The cubic root of 9898800786 is about 2147.1424656095.

The spelling of 9898800786 in words is "nine billion, eight hundred ninety-eight million, eight hundred thousand, seven hundred eighty-six".