9704643213 has 4 divisors (see below), whose sum is σ = 12939524288. Its totient is φ = 6469762140.

The previous prime is 9704643191. The next prime is 9704643227. The reversal of 9704643213 is 3123464079.

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: 3123464079 = 3 ⋅1041154693.

It is not a de Polignac number, because 9704643213 - 2⁸ = 9704642957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9704643283) 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, 1617440533 + ... + 1617440538.

It is an arithmetic number, because the mean of its divisors is an integer number (3234881072).

Almost surely, 2^9704643213 is an apocalyptic number.

It is an amenable number.

9704643213 is a deficient number, since it is larger than the sum of its proper divisors (3234881075).

9704643213 is a wasteful number, since it uses less digits than its factorization.

9704643213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234881074.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 9704643213 is about 98512.1475402907. The cubic root of 9704643213 is about 2133.0114714916.

The spelling of 9704643213 in words is "nine billion, seven hundred four million, six hundred forty-three thousand, two hundred thirteen".