9983657834 has 4 divisors (see below), whose sum is σ = 14975486754. Its totient is φ = 4991828916.

The previous prime is 9983657773. The next prime is 9983657837. The reversal of 9983657834 is 4387563899.

9983657834 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4387563899 = 44777 ⋅97987.

It can be written as a sum of positive squares in only one way, i.e., 8245184809 + 1738473025 = 90803^2 + 41695^2 .

It is not an unprimeable number, because it can be changed into a prime (9983657837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495914457 + ... + 2495914460.

Almost surely, 2^9983657834 is an apocalyptic number.

9983657834 is a deficient number, since it is larger than the sum of its proper divisors (4991828920).

9983657834 is a wasteful number, since it uses less digits than its factorization.

9983657834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4991828919.

The product of its digits is 39191040, while the sum is 62.

The square root of 9983657834 is about 99918.2557593956. The cubic root of 9983657834 is about 2153.2604458316.

The spelling of 9983657834 in words is "nine billion, nine hundred eighty-three million, six hundred fifty-seven thousand, eight hundred thirty-four".