9989247052 has 24 divisors (see below), whose sum is σ = 17912432160. Its totient is φ = 4871475840.

The previous prime is 9989247041. The next prime is 9989247067. The reversal of 9989247052 is 2507429899.

It is a junction number, because it is equal to n+sod(n) for n = 9989246984 and 9989247002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892998 + ... + 904114.

It is an arithmetic number, because the mean of its divisors is an integer number (746351340).

Almost surely, 2^9989247052 is an apocalyptic number.

It is an amenable number.

9989247052 is a deficient number, since it is larger than the sum of its proper divisors (7923185108).

9989247052 is a wasteful number, since it uses less digits than its factorization.

9989247052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16641 (or 16639 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 9989247052 is about 99946.2207989877. The cubic root of 9989247052 is about 2153.6621956062.

The spelling of 9989247052 in words is "nine billion, nine hundred eighty-nine million, two hundred forty-seven thousand, fifty-two".