9847199906 has 16 divisors (see below), whose sum is σ = 15304271544. Its totient is φ = 4748131584.

The previous prime is 9847199903. The next prime is 9847199933. The reversal of 9847199906 is 6099917489.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9548221225 + 298978681 = 97715^2 + 17291^2 .

It is not an unprimeable number, because it can be changed into a prime (9847199903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580445 + ... + 597168.

Almost surely, 2^9847199906 is an apocalyptic number.

9847199906 is a deficient number, since it is larger than the sum of its proper divisors (5457071638).

9847199906 is a wasteful number, since it uses less digits than its factorization.

9847199906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177765.

The product of its (nonzero) digits is 8817984, while the sum is 62.

The square root of 9847199906 is about 99233.0585339382. The cubic root of 9847199906 is about 2143.4050594144.

The spelling of 9847199906 in words is "nine billion, eight hundred forty-seven million, one hundred ninety-nine thousand, nine hundred six".