9788938834 has 8 divisors (see below), whose sum is σ = 14684626188. Its totient is φ = 4894063440.

The previous prime is 9788938813. The next prime is 9788938879. The reversal of 9788938834 is 4388398879.

It can be written as a sum of positive squares in 2 ways, for example, as 9788134225 + 804609 = 98935^2 + 897^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 9788938834.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171897 + ... + 221644.

Almost surely, 2^9788938834 is an apocalyptic number.

9788938834 is a deficient number, since it is larger than the sum of its proper divisors (4895687354).

9788938834 is a wasteful number, since it uses less digits than its factorization.

9788938834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405980.

The product of its digits is 83607552, while the sum is 67.

The square root of 9788938834 is about 98939.0662680824. The cubic root of 9788938834 is about 2139.1695349577.

The spelling of 9788938834 in words is "nine billion, seven hundred eighty-eight million, nine hundred thirty-eight thousand, eight hundred thirty-four".