9863694213 has 4 divisors (see below), whose sum is σ = 13151592288. Its totient is φ = 6575796140.

The previous prime is 9863694167. The next prime is 9863694229. The reversal of 9863694213 is 3124963689.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3124963689 = 3 ⋅1041654563.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9863694213 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9863694413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1643949033 + ... + 1643949038.

It is an arithmetic number, because the mean of its divisors is an integer number (3287898072).

Almost surely, 2^9863694213 is an apocalyptic number.

It is an amenable number.

9863694213 is a deficient number, since it is larger than the sum of its proper divisors (3287898075).

9863694213 is a wasteful number, since it uses less digits than its factorization.

9863694213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287898074.

The product of its digits is 1679616, while the sum is 51.

The square root of 9863694213 is about 99316.1326925289. The cubic root of 9863694213 is about 2144.6011442628.

The spelling of 9863694213 in words is "nine billion, eight hundred sixty-three million, six hundred ninety-four thousand, two hundred thirteen".