9847990386 has 24 divisors (see below), whose sum is σ = 22978644780. Its totient is φ = 3030150816.

The previous prime is 9847990363. The next prime is 9847990393. The reversal of 9847990386 is 6830997489.

9847990386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9846791361 + 1199025 = 99231^2 + 1095^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21042481 + ... + 21042948.

Almost surely, 2^9847990386 is an apocalyptic number.

9847990386 is an abundant number, since it is smaller than the sum of its proper divisors (13130654394).

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

9847990386 is a wasteful number, since it uses less digits than its factorization.

9847990386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42085450 (or 42085447 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The square root of 9847990386 is about 99237.0414008801. The cubic root of 9847990386 is about 2143.4624115386.

The spelling of 9847990386 in words is "nine billion, eight hundred forty-seven million, nine hundred ninety thousand, three hundred eighty-six".